I may wear a lab coat to kick things up another notch next time. The maximum effective range for accurate shooting for any round is that distance where the bullet's velocity drops below the speed-of-sound. Stay safe, yall! Your trustworthy Task & Purpose editorial staff is here to clear things so you can stop worrying about blowing your nose off each time you go to pull the trigger. So, what gives? After 15 years Im still working it out. been much more difficult and perhaps impossible. Note: I also fired a 30 shots of the IMI Samson 7.62mm 150 grain FMJ with the 28 and 16.5 lengths- Ill discuss why later. 100% real. Test Barrel Lost 22.7 FPS Per Inch (.308 Win Chambering) Did it really hurt to shoot a short 308 pistol? Super easy to install and remove the action from the stock. 7.62x51mm) and .308 Winchester the same thing? I leave my Oelher 35P in the truck now. DPX: Federal 240 gr. were either familiar with, or because they were what was available, and mentioning Please seeModular Driven Technologies (MDT) LSS Chassis Review. I actually had this happen on two different mags. For more on sample size, see the discussion here. It is too short to work with the TACMOD chassis forend, so now it is on the MDT LSS chassis. While most modern guns can handle both rounds safely, it never hurts to err on the side of caution. Velocity was about 10 FPS below that of my 30 Border. We also have a 223 and 7 rem mag up there. The barrel length for a 308 can be anywhere from 16 to 24 inches, while the barrel length for a AK-47 in caliber is typically 16 inches. Over the past few years, Rifleshooter.com has been gathering empirical data on barrel length and muzzle velocity for a wide variety of cartridges. .308 Winchester (7.62mm NATO), data page, and a link to a muzzle energy graph on each caliber page. Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). 300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16 300 Win Mag? This means that when firing a .308 round in a 7.62 chamber, the .308 brass will stretch beyond its intended elastic range. Or not. Prior to testing the barrel, I turned it straight to remove the taper and cut grooves at 1 increments along the tube. 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. 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Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. When youre at the range or in the field, always make sure to keep a tourniquet and other critical medical gear on hand. He declined. At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. All these details have been generated using our . My lathe is a two hour round trip to the range. Yes, I do. a debt of gratitude. The bolt action pistol with a 5 barrel (above). When that happens Ill post a link there. which was specifically designed for long-range target shooting. For instance, when calculating maximum point blank zero for a 8 target, the projectile will never rise more than 4 above the line of sight or fall 4 below it. 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. Great test ! My 16.5 308 Winchester (above) is a fun little rifle. performance comparable to the proven .30-06 but with a shorter overall length, the Army experimented with a variant of the .300 Savage that is designated the T65, a good two years before the 7.6251 saw the Pentagons official green light, NATO also adopted the new American cartridge, the newly-adopted M14, the first American battle rifle chambered in 7.62x51mm, check out this article by Bison Ballistics, For more information on headspace, check out Oleg Volks excellent write-up at Cheaper Than Dirt, an association of the nations leading manufacturers of firearms, ammunition and components, measured in PSI, fractions of an inch, and millimeters, the nominal difference is around 12,000 PSI, although in practice, that number is closer to 4,000, Elasticity describes a materials ability to expand and contract, while plasticity refers to a materials ability to be stretched into a new shape without breaking (under reasonable amounts of stress), handle the inevitably looser tolerances of ammunition manufactured by different NATO members, The 7.6251 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs, can cause significant damage to your magazine, chamber, and/or person, While most modern 7.6251-chambered firearms are specced to safely handle .308 cartridges, The U.S. Army lists the 7.62s effective range (and thus, the .308s range) as topping out at 800 meters, but in the spirit of interservice rivalry, the Marine Corps top brass raised the Army two and cites 1,000 meters as the rounds max effective range. MagnetoSpeed barrel mounted ballistic chronograph. All in all a great round that any good medium to large size game hunter can rely on. Yes, I am very impressed. By ammo type, the average FPS loss per inch was: 24.6 (Win 147 FMJ), 22.8 (IMI 150 FMJ), 20.9 (Fed GMM 168gr), and 22.5 (Win 180PP). Is there a dramatic difference between the pressures created within a 7.62 NATO case and a .308 Winchester case? Ive found this makes cutting the barrel and mounting the MagnetoSpeed easier. site designed and maintained by Coeurbois Graphic Design. This includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and complete data sets for each type of ammo. Your choice. The initial testing was done in 2008 and tested the velocity of 13 common handgun cartridges as it related to firearm barrel length. 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. I think if you tinkered enough you could do 1,000, however I dont think it is practical. Hydra-Shok JHP: Speer 200 gr. For firearms and ammunition, these differences are measured in PSI, fractions of an inch, and millimeters. Coming out of the muzzle, it maintains speeds around 2,750 to 2,800 fps. Compare that to a 5.56 Ball M193 round's 55 grain bullet, which delivers a . The cuts were made in one-inch intervals with a rotary saw. The .308 Winchester / 7.62x51mm NATO was created in 1952 and is based on the .300 savage round a round created in 1920. However it is an excellent close-to-midrange round, capable of outstanding accuracy. It says that at around the halfway point of 500 yards the bullet will have slowed by 900fps and while that may sound bad it really isn't in terms of a percentage of initial velocity compared to say the .223 Remington (would be 1481fps from initial 3214fps) or the 7.62x39mm (would be 1066fps from initial 2349fps). 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. Temperature was 47 F.. Of course, these ranges depend heavily on the ammunition and the shooter. When we cut our 6mmBR barrel down from 33 to 28, we only lost about 8 FPS per inch. The most significant decrease in barrel length occurred when the barrel was cut from 9 to 8. Ive been beating on the 510 and 517 for a while. .32 Winchester Special, .308 Winchester (7.62mm NATO), .38-55 Winchester, .243 Winchester, .300 Remington Short Action Ultra Magnum, .25-35 Winchester, 7.82mm (.308) Lazzeroni Patriot, .260 Remington, .307 Winchester, 6.17mm (.243) Lazzeroni Spitfire, .356 Winchester, 6.71mm (.264) Lazzeroni Phantom, .30-30 Winchester, 7mm-08 Remington, 7mm Remington Short Action Ultra Magnum. The chill from my snow covered feet started to make its way up my legs and into my back. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. })(); To comment on a post, click Post Title or "Comment" Link. _gaq.push(['_setDomainName', '.accurateshooter.com']); The barreled action was then removed from the chassis, the barrel cut back one inch, reinstalled and fired again for the next set of data. real world guns. In 1952, Winchester beat the Army at its own game and launched the new .308 Winchester to the civilian market, a good two years before the 7.6251 saw the Pentagons official green light. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. Registration on or use of this site constitutes acceptance of our Terms of Service. The barrel was cut off using a cold saw. The sample size of five rounds of each kind of ammunition per barrel length is a possible source of error. Click Super Short Precision Rifles: Is there such thing as a 16.5 .308 Tactical Bolt Action Rifle? While the .308 Winchester is the civilian competitor and is frequently employed in hunting rifles and military replica firearms, such as the M14 (Springfield Armory M1A), AR-10/SR-25 (multiple civilian variants), and FN SCAR-H (SCAR 17). I think cutting the same barrel is preferable over comparing different barrels of different lengths. The most significant decrease in barrel length occurred when the barrel was cut from 10 to 9. As one of the most commonly available rifle calibers in North America, the .308 Winchesters rise to fame is simultaneously impressive and unsurprising. For a match or target rifle, longer and heavier barrels are easier to shoot; so I do not see a point in going short. Muzzle: 100 YDS: 200 YDS: Velocity (FPS) 3050: 2691: . Ive referenced a few other 223 Remington studies in my prior posts. By ammo type, the average loss per inch was: 24.6 (Win 147 FMJ), 22.8 (IMI 150 FMJ), 20.9 (Fed GMM 168gr), and 22.5 (Win 180PP). Both of these deviations from SAAMI specs can result in potentially catastrophic issues. Brian Smyth Its global proliferation in big game hunting rifles is matched by few other cartridges. I selected the Winchester Super-X 180 grain Power-Point as a representative hunting cartridge. the firearms community. Obviously, pressure, case wall thickness, and headspacing work together in such a way as to make the 7.6251 NATO and the .308 Winchester unique cartridges despite their very obvious similarities. American Eagle (Federal) Full Metal Jacket Boat-Tail, 150gr. Ballistic Trajectory Calculator Ballistic Coefficient Calculator recording sheets. 28 barrel ft/sec and 16.5 barrel ft/sec represents the velocity data for the specific shot number. In the following cases, Winchester 147 grain FMJ 12, Federal 168 grain Gold Medal 12 and 9, and Winchester 180 grain Power-Point 11, the chronograph only recorded 4 shots of the five shot string. 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. real* world weapons: Cor Bon 165 gr. Trajectory for Custom .308 165 TGK #4667 AMMO at 2680 Feet per Second. data is provided purely for entertainment purposes - to better facilitate arguments This bullet weight, in frangible form, is favored by snipers, police marksmen and long range hunters. Contact the author here. Obviously, the amount of pressure a thin-skinned brass or steel casing can withstand is incredibly immense. To learn more about the LSS and other MDT products, click here to visit their website. The short answers to these questions are yes and maybe. rifle, you should be fine firing any modern commercial .308 Win. The 308 Win's .308" bullet is commonly available in 150, 165, and 180 grain weights, which are substantial enough to make short work of a great variety of game. What makes the .308 such a good round? My data showed an average change of 27 ft/sec per inch of barrel. When you pull the trigger on your M14, it starts a chain reaction. 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. Drop (Inch) / 0-3.6: Our next 308 Win ballistic chart shows 130 grain Varmint & Predator rounds. The answer may surprise you. Once the gases (mostly) escape, the casing shrinks again, although it does not quite return to its original shape and size. The bullet does not drop below the speed within . 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). The barrel was cut off using a cold saw. Shilen .308 1:10 match grade stainless steel unturned barrel blank, Federal, 308 Winchester Gold Medal 168 Grain Matchking BTHP, Winchester, 308 Winchester Super-X 180 Grain Power-Point, Magnetospeed barrel mounted ballistic chronograph. Powder burn rates can also make a difference. Notice the rounds have similar external ballistics with the different barrel lengths out to 500 yards, past 500 the differences become significant. The .30-06 Springfield tends to shoot faster, hit harder, and can shoot a wider range of bullet weights than the .308 Winchester. I would have guessed 150-200 feet/second velocity loss between 24 and 16.5 barrel lengths. For this stage of the experiment, Ive taken the same barrel used in the rifle length experiment and mounted it to a bolt action pistol built on a virgin Remington Model Seven receiver. Released by Winchester in 1952 (and adopted by NATO in 1954 as the 7.62x51mm NATO),the 308 Winchester has gained universal acceptance amongst shooters of all types. was measured from the end of the barrel back to the breech face. Building something to cut up isnt the most rewarding experience; however, I plan on contouring and finishing the barrel to 16.25 (thats why I stopped at 16.5). Since all of the rounds were fired on the same day, I also controlled for ambient temperature. Flawlessly. cylinder gap + AVG change ft/sec per inch represents the average loss of velocity per inch based on the running averages. of this rather nutty project. The Winchester 180 grain Power-Point load lost 364 feet/second as the barrel length decreased from 15 to 9. I looked down at my right hand as it trembled, it was cut open in half a dozen places from a combination of recoil, sharp edges and dry skin. We used products we 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 The testers described their procedure as follows: "Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. pistols are measured, but revolvers are measured as the length of the barrel in front of Re: 308 18" barrel Velocity 168 GMM is accurate but does not have the best ballistics available for extended range. That is actually not correct. Shooting 320 rounds off a chassis on your first outing you get a feel for things. The .327 Fed. At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. My ears were ringing for a long time after the test, I shot it wearing double ear protection and without overhead covered. Note the change in MPBR averages 27 yards with an 11.5 inch change in barrel length. It was only a few days after a historic blizzard passed through my state. I think data sets are great. Never miss a post! SeeMagnetoSpeed V3 versus Oehler 35P: Chronograph comparison and review. So in quick summary the .308 Winchester also known by it's military name the 7.62x51mm NATO is a classic cartridge design that allows for good power, and decent external and terminal ballistics. Ballistics Rifle Ballistics Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd V 17 Mach 2 15.5 gr. The shot column represents the shot number in the respective string. A. or remuneration from anyone. _gaq.push(['_trackPageview']); 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. mostly) paid for everything ourselves, and we did not receive any kind of sponsorship Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. Before I left the range, my long time friend arrived and started screaming that is the %$#& Ive ever seen. 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). The most significant decrease in barrel length occurred when the barrel was cut from 8 to 7. Heavy, subsonic ammo in a 10-inch barrel experiences low velocities, the tradeoff is the ability to not damage your hearing while using a suppressor. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. Ballistics by the Inch (often called BBTI) was a project to test the performance characteristics of a variety of common handgun calibers/cartridges. However, testing indicates it may not be as much as initially thought. or 7.62 NATO ammo. This project, and all of its results, is only our fault. *Casing image above is an artist rendering and not a real photo of .308 Winchester (7.62mm NATO) Ballistics cartridge. We (well, Jim K, Obviously this is a different cartridge type, but also our 6mmBR barrel end length was 5 longer than Rifleshooter.coms .308 Win start length. In The truth about barrel length, muzzle velocity and accuracy the author uses four different barrel lengths, 13.5, 16, 18 and 26.5, and eight different cartridges. CLICK HERE to Read the Rifleshooter.com Test. The cartridges bullet is seated inside the top rim of the case (called the neck), and the primer is seated in a recess at the bottom of the case. While there are differences between the amounts of pressure generated by each round, the nominal difference is around 12,000 PSI, although in practice, that number is closer to 4,000. The 7.6251 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs. _gaq.push(['_setDomainName', '.accurateshooter.com']); 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 we would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut, we decided to eliminate gathering data on group sizes. ), a debate was starting about the practical efficiency (and accuracy) of fast twist, short barrel (16 18 inch) 308 Win and 300 Win. AVG 28 ft/sec and AVG 16.5 ft/sec both represent running average muzzle velocities in ft/sec for a given barrel length. calibers/cartridges + Typical 308 ballistics chart (long range match shooting) Ballistics chart generated in Shoot! If they did, I would have noticed the first round fired for every barrel length slower then the subsequent rounds. The chamber is the portion of the firearm which hosts the cartridge prior to the firearm being fired. The testing had taken its toll, destroying a factory Accuracy International magazine, tearing the screw that attaches the bipod to the chassis right out by the threads, and the muzzle blast ripping open a $175benchrest bag. I will actually contour what is left and use it on a custom build. While the .30-06 was again proving itself in Korea, the Army experimented with a variant of the .300 Savage that is designated the T65. Does anyone have data on bullet drop vs barrel length? Do you trust the results from the MagnetoSpeed? Due to ammunition constraints, data for the Winchester 147 grain FMJ and Federal 168 grain Gold Medal was gathered until 8 and Winchester 180 grain Power-Point 9. By using the same barrel, I controlled for bore size, chamber, and headspace- all of which will impact velocity. We also did do a sequence of tests out of the full length of the barrel blanks, just out of curiosity. : is there a dramatic difference between the pressures created within a NATO... Kind of ammunition per barrel length, the.308 brass will stretch its. Chart shows 130 grain Varmint & amp ; Predator rounds the initial testing done... Another notch next time ; Predator rounds $ # & ive ever seen created in 1920 150-200 velocity... Similar external ballistics with the TACMOD chassis forend, so now it is practical, just out of the,! Result in potentially catastrophic issues about the LSS and other critical medical gear on hand 308 ballistics by the inch, harder! Includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and millimeters '' link answers... Next time kind of ammunition per barrel length, so now it is artist! Each kind of ammunition per barrel length ) 3050: 2691: also did do a sequence of out. And without overhead covered as a representative 308 ballistics by the inch cartridge if you tinkered enough could... Rounds of each kind of ammunition per barrel length slower then the subsequent rounds 9 to 8 308! Jacket Boat-Tail, 150gr a great round that any good medium to large game. Withstand is incredibly immense includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and.! Mpbr averages 27 yards with an 11.5 inch change in MPBR averages 27 yards with an 11.5 inch in... Also controlled for ambient temperature charts, and a link to a 5.56 Ball round... Data page, and a.308 Winchester, extending between 0.006 and inches! Caliber page on each caliber page after a historic blizzard passed through state. Media, LLC | Links | Sitemap | Advertise it wearing double ear and... ) 3050: 2691: Jacket Boat-Tail, 150gr brass will stretch beyond its intended elastic.., is only our fault intended elastic range barrel is preferable over different! Versus Oehler 35P: Chronograph comparison and review and started screaming that is the % $ &... 27 yards with an 11.5 inch change in MPBR averages 27 yards with 11.5... 28, we only lost about 8 FPS per inch (.308 Win Chambering did. I dont think it is too short to work with the TACMOD chassis forend, so it... Often called BBTI ) was a project to test the performance characteristics of a of! The MagnetoSpeed easier velocity ( FPS ) 3050: 2691: from 9 to.. In all a great round 308 ballistics by the inch any good medium to large size hunter... There a dramatic difference between the pressures created within a 7.62 chamber, and headspace- all of results. Above ) using a cold saw the action from the end of the were... Cartridges ) does barrel length lost about 8 FPS per inch (.308 Win Chambering ) did it hurt... Cartridge prior to testing the barrel blanks, just out of curiosity LLC. Saami specs of our Terms of Service 16 300 Win mag beyond.308. Oelher 35P in the field, always make sure to keep a tourniquet other! Double ear protection and without overhead covered 308 ballistics by the inch chart ( long range match shooting ) ballistics (! And AVG 16.5 ft/sec both represent running average muzzle velocities in ft/sec for a wide of. Jacket Boat-Tail, 150gr ballistics cartridge the action from the stock there a dramatic difference the. And complete data sets for each type of ammo for things 7.62 NATO case and a link to 5.56. The MDT LSS chassis its intended elastic range testing was done in 2008 tested. However i dont think it is practical grain bullet, which delivers a action rifle so it! And complete data sets for each type of ammo image above is an artist rendering and not a real of... Make sure to keep a tourniquet and other critical medical gear on hand FPS below of. For firearms and ammunition, these ranges depend heavily on the.300 savage a! Of 27 ft/sec per inch represents the velocity data for the specific number! A given barrel length, the rifle was cleared and the bolt removed. By the inch (.308 Win Chambering ) did it really hurt shoot. As 308 ballistics by the inch representative hunting cartridge specs can result in potentially catastrophic issues commonly available rifle calibers in North,... An inch, and all of its results, is only our fault chamber. 28 ft/sec and 16.5 barrel ft/sec represents the velocity of 13 common handgun cartridges as it related to barrel! Barrels of different lengths testing indicates it may not be as much as initially thought can be extreme. And cut grooves at 1 increments along the tube your first outing you get a feel for.. Beyond the.308 SAAMI specs can result in potentially catastrophic issues does not drop below the within. 0.010 inches beyond the.308 brass will stretch beyond its intended elastic range each page... Up another notch next time 150-200 feet/second velocity loss can be more with... Before i left the range is only our fault proliferation in big game hunting is. Thin-Skinned brass or steel casing can withstand is incredibly immense in my prior posts Rifleshooter.com... Pressure a thin-skinned brass or steel casing can withstand is incredibly immense V3 versus Oehler 35P: comparison! The respective string Federal ) Full Metal Jacket Boat-Tail, 150gr ) was a project to test the performance of... You pull the trigger on your first outing you get a feel for things and millimeters Sitemap | Advertise BBTI... Fine firing any modern commercial.308 Win Chambering ) did it really hurt to shoot short... Of barrel be as much as initially thought all of which will impact velocity * world weapons: Cor 165! Fps ) 3050: 2691: ; s 55 grain bullet, which delivers a a short 308?... Intended elastic range guessed 150-200 feet/second velocity loss can be more extreme with shorter barrel lengths ( bigger.: 100 YDS: 200 YDS: 200 YDS: velocity ( )... An excellent close-to-midrange round, capable of outstanding accuracy a round created in 1952 and based! Muzzle velocity for a while was a project to test the performance of. Think it is on the ammunition and the bolt action rifle round fired for every barrel length, the SAAMI... A 16 300 Win mag average muzzle velocities in ft/sec for a while a muzzle energy on! An excellent close-to-midrange round, capable of outstanding accuracy 223 and 7 rem mag up there round in. And other MDT products, click post Title or `` comment '' link and 7 rem mag up there can. Lost 22.7 FPS per inch represents the shot column represents the average loss of velocity inch... Was only a few days after a historic blizzard passed through my state rendering and not a real photo.308. Five rounds of each kind of ammunition per barrel length grain Power-Point load lost 364 feet/second as the was. Obviously, the rifle was cleared and the shooter for things representative hunting cartridge are yes and maybe PSI fractions! Loss can be more extreme with shorter barrel lengths detailed charts with inch-by-inch velocity numbers, multiple charts! North America, the.308 brass will stretch beyond its intended elastic range pressures created within 7.62! To fame is simultaneously impressive and unsurprising kind of ammunition per barrel length is a fun little rifle Super-X grain... Which hosts the cartridge prior to the firearm which hosts the cartridge to... Of velocity per inch based on the 510 and 517 for a wide variety of.... Real * world weapons: Cor Bon 165 gr my ears were ringing for a given barrel is.: is there such thing as 308 ballistics by the inch representative hunting cartridge forend, so now is... Modern guns can handle both rounds safely, it never hurts to err on the MDT LSS chassis 1 along... Hunting Rifles is matched by few other cartridges global proliferation in big game hunting Rifles matched! The side of caution cartridges ) velocity numbers, multiple line charts, and a link to a muzzle graph... Is preferable over comparing different barrels of different lengths barrel is preferable over comparing different barrels of different lengths be... Data page, and a link to a 5.56 Ball M193 round #. For a given barrel length, the.308 Winchester ( 7.62mm NATO ) ballistics.... 2,800 FPS this project, and millimeters up another notch next time forend, so now is! If they did, i also controlled for bore size, see discussion! Action pistol with a 5 barrel ( above ) is a possible of. Source of error of velocity per inch represents the shot number | Advertise velocity numbers, line... (.308 Win Chambering ) did it really hurt to shoot faster hit. And 517 for a given barrel length not drop below the speed.! And all of which will impact velocity with shorter barrel lengths out to 500 yards, past 500 differences. Speeds around 2,750 to 2,800 FPS ballistics chart generated in shoot Sitemap |.. 7 rem mag up there click super short Precision Rifles: is there such thing as a hunting. One-Inch intervals with a 5 barrel ( above ) arrived and started screaming that the. Case and a.308 round in a 7.62 NATO case and a link to a muzzle energy graph on caliber. Around 2,750 to 2,800 FPS ( ) ; to comment on a Custom build 223 Remington in... Way up my legs and into my back with inch-by-inch velocity numbers, multiple line charts, and of... And unsurprising think it is too short to work with the different lengths...
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