308 ballistics by the inch

(function() { ga.src = ('https:' == document.location.protocol ? was measured from the end of the barrel back to the breech face. With the .30 caliber bullet diameter being translated as 7.62 millimeters, the new 7.62x51mm cartridge was born. The same barrel was then mounted on a bolt action pistol, and data was gathered for the same four cartridges from 14 to 6 in 223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. This bullet weight, in frangible form, is favored by snipers, police marksmen and long range hunters. Starting out at 2840fps muzzle velocity ( over 100fps faster than the standard A-MAX load from Hornady) this bullet is sighted-in to zero at 240 yards and is 39.16 low at 500 yards. The following is a 1000 yard .308 ballistic chart that was created using our free online ballistic calculator and details all aspects of the bullets trajectory from the millisecond it leaves the barrel until the time it reaches the 1,000 yd mark. I think if you tinkered enough you could do 1,000, however I dont think it is practical. I also took the time to groove the barrel in one inch increments from 16.5 to 28 as a cutting guide. The bullet does not drop below the speed within . Do you trust the results from the MagnetoSpeed? The test protocol was repeated for the next length. The following is a ballistics chart in table format that details the bullet trajectory of a 30-30 Winchester 150 grain HP X30301 and a balistic coefficient of .218. My 16.5 308 Winchester (above) is a fun little rifle. I think he may be misquoting his source. Ballistics by the Inch (often called BBTI) was a project to test the performance characteristics of a variety of common handgun calibers/cartridges. Just ask Todd Hodnett. calibers/cartridges + The cartridge is an ammunition assembly that combines the projectile (i.e., the bullet), propellant (or powder), and the primer (the ignition switch) into a single unit housed inside a cartridge case. I bought a quart. If you liked this postsubscribe to this blog (top right corner of page). This allows it to keep a supersonic muzzle velocity at 1,000 yards. It seems like the 7.62x39mm Russian performance is optimum at a 16 barrel length. Muzzle: 100 YDS: 200 YDS: Velocity (FPS) 3050: 2691: . The Winchester 147 grain FMJ and IMI Samson 150 grain FMJ are both widely available and commonly used in semiautomatic rifles. Its global proliferationin big game hunting rifles is matched by few other cartridges. The small sample size is always an issue. The forearm was removed after the first string to allow access to the saw. For antelope hunters on the Wyoming plains and snipers providing overwatch in the Hindu Kush, there is no difference. It is too short to work with the TACMOD chassis forend, so now it is on the MDT LSS chassis. For firearms and ammunition, these differences are measured in PSI, fractions of an inch, and millimeters. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized, Sig Sauer MCX Virtus PCP Air Rifle Review- Initial Impressions, Project Guns- Gunsmithing articles and posts, 308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28 to 16.5), 223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. 20" seems to be ideal for the 7/08 and the 308. from 18" to 20" on a 7/08 I gained almost 200 ft/sec. Blueprinting (Truing) a Remington 700 Action, 308 Winchester H4895 Reduced loads, 168 SMK and 150 Pro-Hunter H4895 is the first powder Hodgdon introduced. Temperature was different, during this stage, it was 40F, 7 degrees cooler than the 47F I recorded during the initial study. This includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and complete data sets for each type of ammo. The muzzle blast was so violent, it chopped open my Edgewood bag when it got too close. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. A tweet/email or post a comment on the blog - one of us will double-check the original .308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length, .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, .223 Rem Velocity by Barrel Length Cut-Down Test Results. Much Different Results with 6mmBR and a Longer Barrel December 27, 2014 If you think that you discover an error (perhaps a typo) in the data, just drop us a Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. var _gaq = _gaq || []; Of course, these ranges depend heavily on the ammunition and the shooter. If your .308 isn't close to these specs, or if you are a sniper or into long range shots you may want to take this a step further and use our ballistic calculator to create a custom .308 ballistic chart to take into account variances. He,he. When the U.S. Army began developing the 7.62x51mm round, Winchester saw the writing on the wall and figured to cash in on what it hoped was the next official cartridge of the American infantryman, because when it comes to weapons technology, the military sells. This resulted in a velocity loss of 94 feet/second. Whether the shooter is stretching his rifles legs on F-Class competition or competing in a Tactical Rifle match, an accurate rifle helps a shooter achieve []. The 308 is slightly more powerful and has a longer range. Note the change in MPBR averages 27 yards with an 11.5 inch change in barrel length. Trajectory for Custom .308 165 TGK #4667 AMMO at 2680 Feet per Second. Tight tolerances increase machine efficiency, while loose tolerances allow for more play in a part. If youre shopping the civilian market for a new rifle and need to narrow it down to one or the other, go with the .308 Winchester option. This results in a 7.62 case that is ever so slightly longer than its commercial brother. When we cut our 6mmBR barrel down from 33 to 28, we only lost about 8 FPS per inch. Skip to main content; Skip to secondary menu; Skip to primary sidebar; . With tunning accuracy is 99.7%. Is there a dramatic difference between the pressures created within a 7.62 NATO case and a .308 Winchester case? This weight is more appropriate for whitetail deer and other small-medium sized game. It details drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. This was noticeable from 19 inches and below. All in all a great round that any good medium to large size game hunter can rely on. (Yes, grains are an actual measurement of weight.). Barrel length in inches versus Muzzle velocity for Winchester 147 Grain FMJ, Barrel length in inches versus Muzzle velocity forIMI Samson 7.62mm 150 Grain FMJ, Barrel length in inches versus Muzzle velocity for Federal Gold Medal 168 Grain Match BTHP, Barrel length in inches versus Muzzle velocity for Winchester 180 Grain Power-Point Ammunition. CLICK HERE to Read the Rifleshooter.com Test. It will a produce a line graph showing the bullet drop and flight path of the bullet. When compared to the original rifle length barrel velocity experiment, I was able to control for the barrel, ammunition and chronograph. As one of the most commonly available rifle calibers in North America, the .308 Winchesters rise to fame is simultaneously impressive and unsurprising. It helped pave the way for the successful powder company that exists today. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; Bill Marr So while more reliable results will be obtained with a larger sample size, the data generated from a smaller sample is still of some use (provided it doesnt contain an outlier- which is why I dont know of anyone using data from single shots). In the good old days of Precision Shooting magazine (how we miss you! brass or casing) is the shell of a firearms cartridge that houses the propellant. While we have went to great lengths to make sure that it's as accurate as possible this rendering should not be used to generate specs for casings. Since the 308 Winchesteris a popular hunting cartridge, I worked out the maximum point-blank range (MPBR, sometimes referred to as maximum point blank zero) for each barrel length with the given load assuming a 8 vital area. This results in a 7.62 case that is ever so . Compare the above rates of loss to those found in308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28 to 16.5), where the Winchester 147 grain FMJ averaged 24.6 feet/second per inch of barrel, IMI 150 grain FMJ averaged 22.8 feet/second per inch of barrel, Federal 168 grain Gold Medal averaged 20.9 feet/second per inch of barrel and the Winchester 180 grain Power-Point 22.5 feet/second per inch of barrel. So, the natural question is this: can you shoot 7.62 ammo through a .308-chambered firearm? ), a debate was starting about the practical efficiency (and accuracy) of fast twist, short barrel (16 18 inch) 308 Win and 300 Win. A 20 inch barrel is a good balance between power and portability. Increasing this sample size would increase the reliability of these results. A. This stage was conducted on pistol built on a Model Seven action (note, you cant convert rifles to pistols in the US, to make a pistol you need to start with a virgin receiver that has never been a rifle). Try these too.. this insane project much more practical. Before I left the range, my long time friend arrived and started screaming that is the %$#& Ive ever seen. By adding trajectories to the panel on the right you may produce charts and graphs that show the different trajectories side by side. While you can get close estimates to anticipated velocities by examining anecdotal accounts from different shooters and looking over load manuals, the data gathered in an actual experiment provides a baseline that can help inform your decision making process. For another measure of bullet power, some people prefer to use Muzzle Energy. Nearly every target shooter had his teeth cut on a 308 Winchester. The cartridge case (a.k.a. Mag. As always, Big Army inefficiency slowed down testing and evaluation and, in the meantime, Winchester got hold of the new cartridge dimensions. All shooting was done from a bench, with a Sinclair rest and rear bag. Cases are most often made with brass but may occasionally be made with steel or receive a nickel-plated finish. Dig around some, and youll likely find yourself scratching your head, wondering what the difference is between 7.62 and .308 rounds. .308 Winchester (7.62mm NATO), The chill from my snow covered feet started to make its way up my legs and into my back. Would be interesting to find out. Cutting the barrel from 28 to 16.5 resulted in a velocity reduction of 283 ft/sec for the Winchester 147 grain FMJ, 262 ft/sec for the IMI Samson 150 grain FMJ, 240 ft/sec for the Federal Gold Medal 168 grain BTHP, and 259 ft/sec for the Winchester Super-X 180 grain Power-Point. At 55 grains, its bullet achieves 3,910 fps; at 100 grains, 2,960 fps. That said, we wouldnt make a habit of it. The 243 Win's muzzle velocity hinges on its bullet weight. real world guns. The IMI 150 grain FMJ 7.62x51mm NATOload lost 735 feet/second as the barrel length decreased from 15 to 6. Besides the time, I havent noticed any burrs (real or imagined) left by the saw affecting the velocity of the bullets. This was an average decrease of 60.7 feet/second per inch of barrel length. I will actually contour what is left and use it on a custom build. Like the 5.56 versus .223 comparison, understanding the differences between 7.6251 NATO and .308 Winchester is an exercise in patience that has the potential to save you and your wallet some pain and agony. In the coming weeks Ill be combining the data from both experiments into one post. 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Test Barrel Lost 22.7 FPS Per Inch (.308 Win Chambering) The average data for these four shot data sets is recorded in the table above, as well as the tables below. Initially we intended to test both 9mm and .45ACP cartridges for this sequence. I had 100% extraction during the course of this experiment. A crown that does not run true to the bore can not only destabilize the projectile as it leaves the barrel, but also causes []. One has to remember some times taking off that extra inch spoils that barrel and day! The testers observed: The Berger Reloading manual says for the 308 Winchester, muzzle velocity will increase (or decrease) by approximately 20 fps per inch from a standard 24 barrel., How the Test Was Done .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, .308 Win Velocity vs. Barrel Length 28 to 16.5 Cut-Down Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, Barrel Length and Velocity in a .223 Rem Barrel Cut-Down Test, http://rifleshooter.com/wp-content/uploads/2015/01/custom-16.5-rem-700-308.jpg. We did all the work. were either familiar with, or because they were what was available, and mentioning Tipped MatchKing (TMK) and VARGET, Mossberg 500: Cut, Crown and Choke Tube Installation, 6.5 Creedmoor load development: 16.5 inch barrel, 123 SMK and 140 SMK, Jewell trigger installation on Winchester 70/FN Special Police, Remington 700 Tactical .308 AAC-SD Review, Completing an 80% 10/22 Select Fire LLC RAZOR Semiautomatic Receiver, Scattergun Technologies Track-Lock II Ghost Ring Sight Installation on a Remington 870 Police Magnum, Removing a stuck pull-through cleaning kit, 308 WinchesterBarrel length in inches versus Muzzle velocity in feet-per-second (ft/sec), 308 Winchester Maximum Point Blank Range (MPBR) in yards for 8 Target. Before we start getting technical, lets take a few moments to define a few key terms and concepts that will make this conversation easier for everyone. At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. Ballistic Trajectory Calculator Ballistic Coefficient Calculator Because of the arc of travel of the bullet you will hit dead center at 50 and 200 yards with a 50 yard zero. For hunting and tactical applications, I see a real benefit to the shorter barrels. Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; Brian Smyth is a lifelong word nerd, gearhead, and (virtual) military brat who joined the Task & Purpose team in 2021 following a short stint with The Drive. Interestingly, these numbers jive pretty well with estimates found in reloading manuals. . Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). Does anyone have data on bullet drop vs barrel length? When looking at .277 Fury's ballistics, . To learn more about how I made this modification, see the Project Guns section of this site. At each cut length, velocity was measured with a Magnetospeed chronograph. My ears were ringing louder than I could remember and my nose ran in the cold air. AVG change ft/sec shows the difference between the running averages of the 28 and 16.5 barrels. The vast majority of rifles, carbines, and pistols chambered in .308 Winchester can safely sling 7.62 lead downrange and extract the thicker casings despite the longer headspace. No, I did not. Turning a sporter contour rifle barrel from a blank, 6.5 Creedmoor loads: 107 SMK IMR 8208 XBR and 142 SMK Superformance 6.5 Creedmoor made a name for itself based on performance with the 120-142 gr. Since muzzle velocity is dependent on pressure, temperature and volume, I attempted to control as many variables as possible given my setting and equipment. The .308 Winchester as a hunting round is great for deer, mule deer, elk, black bear, and nuisance animals like wild hogs. The results of those tests can be found on our blog. Maybe he meant negligible? According to multiple non-scientific studies, the average .308 case weighs in around 160 to 170 grains each, while 7.62 brass usually comes in at over 180 grains apiece. The maximum effective range for accurate shooting for any round is that distance where the bullet's velocity drops below the speed-of-sound. However, the 308 Winchester is a short-action cartridge that has less recoil but is just as capable at normal hunting distances. Thanks for the kinds words about the 308 and 300 Win barrel length posts. home + Your data showed the 7.6239 mm Russian slowed down from 23 to 24 in barrel length. var _gaq = _gaq || []; Acknowledgements. Cartridge casings are most often made of brass due to its elasticity and plasticity. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); Wind Components are (Miles per Hour): DownRange: 0.0 Cross Range: 10.0 Vertical: 0.0. Nearly every target shooter had his teeth cut on a 308 Winchester. Ive been beating on the 510 and 517 for a while. A. Barrel length, Barrel length and velocity, Cartridge Selection Yes, it did. The Army wanted a new rifle caliber with performance comparable to the proven .30-06 but with a shorter overall length, a new wonder cartridge. Ive referenced a few other 223 Remington studies in my prior posts. _gaq.push(['_trackPageview']); So what works best? Ballistics and Drop for the .308 Winchester (7.62mm NATO) Cartridge Type: Rifle Height: 2.015" Width: 0.473" Average FPS: 2681 Average Energy: 2617 Average Gr: 164 Recoil: 1.95 Power Rank: 4.4 of 20 The .308 Winchester / 7.62x51mm NATO was created in 1952 and is based on the .300 savage round a round created in 1920. class bullets. Much Different Results with 6mmBR and a Longer Barrel We may earn revenue from the products available on this page and participate in affiliate programs. Fear not. Comparing the data from the 30 shot strings (28 2824 and 16.5 2555) to the 5 shot strings (28 2823 and 16.5 2561) I found a loss of 269 ft/sec (23.4 ft/sec per inch) as the barrel was cut. The cuts were made in one-inch intervals with a rotary saw. The brand new, factory AI AICS magazine also flew apart as few times. That works out to an average loss of 22.7 fps per inch. Once it reaches 500 yards, it has slowed but it's still maintaining . Time. CLICK HERE to Read the Rifleshooter.com Test. When that happens Ill post a link there. Then, once you get home, secure your beautiful new Remington 700 or SCAR 17 in your gun safe. The Winchester 180 grain Power-Point load lost 364 feet/second as the barrel length decreased from 15 to 9. This means throwing .308 rounds into the magazine of a 20-year-old M14 could set taxpayers back the cost of a new rifle and your medical bill at Walter Reed. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. The test protocol was repeated for the next length. In the next frame you can see the gun recoiling (below). After 15 years Im still working it out. Since I would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut; I decided to eliminate gathering data on group sizes. With barrels, one wonders Can a little more length provide a meaningful velocity gain? To answer that question, Rifleshooter.com performed an interesting test, cutting a .308 Win barrel from 28 all the way down to 16.5. This was an average decrease of 73.1 feet/second per inch of barrel length. All these details have been generated using our . I used my iPhone to record a couple shots being fired in slow motion. For more on sample size, see the discussion here. Prior to testing the barrel, I turned it straight to remove the taper and cut grooves at 1 increments along the tube. The devil is in the details with the difference between the two boiling down to three key factors: pressure capacity, case sizing, and chamber dimensions. Velocity was about 10 FPS below that of my 30 Border. This is not shown in the data, nor has was it shown in data for the 223 and 300 Win Mag posts. Looking for a two-minute summary of the differences between 7.62x51mm NATO and .308 Winchester? The most significant decrease in barrel length occurred when the barrel was cut from 10 to 9. data page, and a link to a muzzle energy graph on each caliber page. At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. While I agree (as do most experienced shooters) that a long barrel isnt necessary for long range shooting, the post makes some pretty bold claims on accuracy (The test obliterated what was previously thought to be fact) that I dont think are supported by such a limited data set. Drop (Inch) / 0-3.6: Our next 308 Win ballistic chart shows 130 grain Varmint & Predator rounds. Super Short Precision Rifles: Is there such thing as a 16.5 .308 Tactical Bolt Action Rifle? Despite winning two world wars in partnership with the M1903 Springfield and the M1 Garand, the long action .30-06 Springfield fell out of favor with the U.S. Army following World War II. of this rather nutty project. I think cutting the same barrel is preferable over comparing different barrels of different lengths. I like it a lot. The most significant decrease in barrel length occurred when the barrel was cut from 14 to 13. The chops tests ranged in barrel length from 18" down to 3". In the spirit of my last two posts on empirical data of barrel length and velocity,223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifleand300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16 300 Win Mag?, I built a custom rifle on a Remington 700 short action to cut back its barrel one inch at a time and measure the velocity with four different types of ammunition. Typical 308 ballistics chart (long range match shooting) Ballistics chart generated in Shoot! Here is our 308 Winchester ballistics chart page, where we feature info from Federal, Hornady, Remington, and Winchester. Obviously, the amount of pressure a thin-skinned brass or steel casing can withstand is incredibly immense. When cutting a 308 Winchester barrel from 26 to 20, he claims a gunsmith found that a 20-inch barrel provides for a complete propellant burn and no velocity loss when using Federal Match 168-grain BTHP. Remington Model Seven Actions are available! I post it here, for free, so other shooters can learn from it. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. We also have a 223 and 7 rem mag up there. You would gain more by using a higher BC bullet like a Scenar, and/or running a little higher chamber pressure. 308 Winchester/ 7.62x51mm NATO Comparison of velocity data. Headspace is the distance between the base of a case and the portion of the case that locks the entire cartridge into place within the chamber. _gaq.push(['_trackPageview']); If they did, I would have noticed the first round fired for every barrel length slower then the subsequent rounds. Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). 28 barrel ft/sec and 16.5 barrel ft/sec represents the velocity data for the specific shot number. 22" is optimum for the 308,Longer will get more velocity, but at a price. This creates a seal that prevents exhaust gases from exiting the firearm through any point except the barrel. The initial testing was done in 2008 and tested the velocity of 13 common handgun cartridges as it related to firearm barrel length. The 308 Winchester centerfire cartridge has an average fps of 2681 (average made by adding and diving all bullets in our db), average grain is 164 (they don't make 164 gr this is just the average), and has an average energy of 2617. To make the test even more interesting, four different types of .308 Win factory ammunition were chronographed at each barrel length. These graphs assume a 1.75 height of the optic over the bore and weather conditions of 59F. Since all of the rounds were fired on the same day, I also controlled for ambient temperature. Yes, I am very impressed. Muzzle flash with the IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below. In the second post below, youll see some outstanding 500 yard targets that I shot with the rifle. Notice the rounds have similar external ballistics with the different barrel lengths out to 500 yards, past 500 the differences become significant. The 300 Blackout's sleeker bullet has a higher ballistic coefficient than the 5.5645, but with less speed its trajectory invariably arcs more sharply. *Casing image above is an artist rendering and not a real photo of .308 Winchester (7.62mm NATO) Ballistics cartridge. Note: I did not run the 180 grain Power-Point because I dont view it as a distance cartridge. Energy, velocity was measured with a Sinclair rest and rear bag line charts, and millimeters, a... Fps ; at 100 grains, 2,960 FPS the difference between the running averages the... Averages of the bullet drop vs barrel length, the rifle was cleared the... Made in one-inch intervals with a Sinclair rest and rear bag trajectories with different barrel lengths ( and bigger )... Is optimum at a price the propellant next 308 Win ballistic chart 130. And.308 Winchester ( 7.62mm NATO ) ballistics chart ( long range hunters steps! Of pressure a thin-skinned brass or steel casing can withstand is incredibly immense my iPhone to record a shots... A dramatic difference between the pressures created within a 7.62 case that is ever so longer. Drop below the speed within assume a 1.75 height of the most commonly available rifle in!, in frangible form, is favored by snipers, police marksmen and long range hunters:... Inch change in MPBR averages 27 yards with an 11.5 inch change MPBR... As it related to firearm barrel length info from Federal, Hornady Remington... ( inch ) / 0-3.6: our next 308 Win ballistic chart shows 130 grain Varmint & ;... Shot with the rifle ammunition, these differences are measured in PSI fractions. By the inch ( often called BBTI ) was a project to test the performance of... 16 barrel length, windage, and does so in 50 yard steps that are easy to.! Our next 308 Win ballistic chart shows 130 grain Varmint & amp ; Predator rounds same day I... Controlled for ambient temperature barrel, ammunition and chronograph 16.5 barrels being fired in motion! Other cartridges used my iPhone to record a couple shots being fired in slow motion charts and that... Right you may produce charts and graphs that show the different trajectories side by side it keep! Lost 735 feet/second as the barrel, ammunition and the shooter ; Predator rounds Edgewood when. The TACMOD chassis forend, so now it is practical both widely available and commonly used in semiautomatic rifles to! The course of this experiment widely available and commonly used in semiautomatic rifles measured with a rotary saw results those! And a.308 Win barrel length decreased from 15 to 9 by few other 223 Remington studies in my posts! Intended to test both 9mm and.45ACP cartridges for this sequence increments the... Days of Precision shooting magazine ( how we miss you a part Media, LLC Links. Magazine ( how we miss you my 30 Border 1 increments along the tube magazine ( we! From 18 & quot ; 100 YDS: 200 YDS: velocity ( FPS ) 3050 2691. Point except the barrel length time to groove the barrel in one inch increments from 16.5 to as..., one wonders can a little higher chamber pressure obviously, the.308 Winchesters rise to is! 308 ballistics chart page, where we feature info from Federal, Hornady, Remington and... The Winchester 147 grain FMJ are both widely available and commonly used in semiautomatic rifles few times here our. We also have a 223 and 300 Win Mag posts slightly longer than commercial! Large size game hunter can rely on rise to fame is simultaneously impressive and unsurprising too! Company that exists today ) ; so what works best, time, energy velocity... Head, wondering what the difference is between 7.62 and.308 Winchester see a real photo of.308 Winchester 7.62mm. Dig around some, and complete data sets for each type of ammo bullet diameter being translated 7.62! For free, so now it is on the ammunition and chronograph that I shot with the different trajectories by... A 223 and 300 Win Mag posts it on a 308 Winchester protocol was for... Even more interesting, four different types of.308 Winchester ( 7.62mm NATO ) ballistics generated. Gathered using a Magnetospeed barrel mounted ballistic chronograph burrs ( real or imagined ) left the. Offers ballistics graphs showing trajectories with different barrel lengths the panel on the same,... More about how I made this modification, see the gun recoiling ( below ) was,. Shooter had his teeth cut on a 308 Winchester is a good balance between power and...., during this stage, it chopped open my Edgewood bag when it got too.! And weather conditions of 59F that are easy to understand supersonic muzzle velocity hinges its! Test both 9mm and.45ACP cartridges for this sequence between the running averages of the most significant decrease barrel! Links | Sitemap | Advertise decreased from 15 to 6 this modification, the... Averages 27 yards with an 11.5 inch change in MPBR averages 27 yards with an 11.5 change!, cartridge Selection Yes, it did and long range match shooting ) ballistics cartridge contour what left. I see a real photo of.308 Win factory ammunition were chronographed at each cut length, the 7.62x51mm. As 7.62 millimeters, the new 7.62x51mm cartridge was born Mag posts scratching your head wondering. Intervals with a Magnetospeed barrel mounted ballistic chronograph much more practical allows it to a!, 7 degrees cooler than the 47F I recorded during the course of this experiment bigger ). These numbers jive pretty well with estimates found in reloading manuals the speed within grain. 28 all the way down to 3 & quot ; is optimum at a price game....308 Winchester more about how I made this modification, see the gun recoiling ( below.!, during this stage, it was 40F, 7 degrees cooler than the 47F I recorded during course... Grains, 2,960 FPS was gathered for each cartridge at a given barrel length.308 TGK... Above ) is the shell of a firearms cartridge that houses the.... Velocity hinges on its bullet achieves 3,910 FPS ; at 100 grains, its bullet achieves 3,910 ;. This allows it to keep a supersonic muzzle velocity at 1,000 yards note the change in barrel decreased... 22 & quot ; down to 16.5 teeth cut on a 308 Winchester ballistics chart generated in shoot test performance. Inch spoils that barrel and day artist rendering and not a real benefit to the shorter barrels loose allow... We cut our 6mmBR barrel down from 23 to 24 in barrel length posts tactical! Bench, with a Sinclair rest and rear bag millimeters, the 308 Winchester is fun! Different barrel lengths ( and bigger cartridges ) Rifleshooter.com performed an interesting,... Range hunters cutting the same day, I havent noticed any burrs ( real or imagined left... Made with steel or receive a nickel-plated finish during this stage, it has slowed but it & x27... Inch ) / 0-3.6: our next 308 Win ballistic chart shows 130 grain Varmint amp. We miss you a real photo of.308 Win factory ammunition were at! It here, for free, so now it is practical ( and bigger cartridges ) bullet energy velocity. In 50 yard steps that are easy to understand are an actual measurement of weight. ), once get... Found on our blog steel or receive a nickel-plated finish 6mmBR barrel down from 33 to as... The differences between 7.62x51mm NATO and.308 rounds showing trajectories with different barrel lengths and. To 16.5 ballistics with the IMI 150 grain FMJ and IMI Samson 150 grain FMJ are widely! Main content ; Skip to secondary menu ; Skip to primary sidebar ; hinges its... Is on the same day, I see a real benefit to the panel on the same barrel is over! Contour what is left and use it on a 308 Winchester is a good balance between power portability! About 10 FPS below that of my 30 Border flight path of the significant! For free, so now it is on the same day, I also took the to!, some people prefer to use muzzle energy the performance characteristics of a firearms cartridge that has less recoil is...: can you shoot 7.62 ammo through a.308-chambered firearm copyright GunData.org 2015 Koenig. Big game hunting rifles is matched by few other 223 Remington studies in my prior posts 308 chart... Remington studies in my prior posts in data for the next length.308-chambered firearm velocity 1,000! Selection Yes, it has slowed but it & # x27 ; muzzle. | Links | Sitemap | Advertise wonders can a little higher chamber.. Cartridge was born the saw affecting the velocity of the barrel in one inch from!, Rifleshooter.com performed an interesting test, cutting a.308 Winchester case the 510 and for! A velocity loss can be more extreme with shorter barrel lengths ( and bigger cartridges ) not drop the... Recoiling ( below ) the.308 Winchesters rise to fame is simultaneously and... Rifles: is there such thing as a cutting guide Russian performance is at... Match shooting ) ballistics chart page, where we feature info from Federal Hornady. Cutting guide louder than I could remember and my nose ran in the Second post below, youll see outstanding... Page ) is too short to work with the TACMOD chassis forend so... New 7.62x51mm cartridge was born one of the barrel, I see a real photo of.308 barrel... Factory AI AICS magazine also flew apart as few times grain Varmint & amp ; Predator rounds imagined left., one wonders can a little higher chamber pressure and 7 rem Mag up there shooting magazine how. Will produce a line graph showing the bullet does not drop below the speed within notice the were. In barrel length 147 grain FMJ was noticeably worsefrom 18 and below inch!

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