Imload my 30/40 Krag with the Hornady 30396 160 gr FTX bukkets designed for the 308 Marlin Express A 2600 fps.. The 308 is stronger, thicker at the base, and operates at a chamber pressure. The .308 Winchester has a slightly longer same case length (1.92″ vs 2.015″), but the 6.5 Creedmoor has a little bit longer overall length (2.825″ vs 2.81″). Answer (1 of 8): The M1A1 marking is the model, not the caliber. Nonetheless it is normally safe to shoot 7.62x51 NATO-class ammo in your .308 Win because current .308 Winchester rifles are designed for higher maximum pressures. Pressure 7.62 NATO is rated for a lower max pressure than .308 Winchester. [24] It's one of the most successful military rifle cartridges of all time. ). Super pressure. If you plan on using a surplus rifle chambered in either .308 Win or 7.62 NATO, you should have the gun's headspace checked by a professional to ensure you can . About Leverguns. Those traits allow the Creedmoor to use very long, high BC bullets without . As I noted earlier, the 7.62 NATO and 308 Winchester cartridge/chamber specs differ a bit. The rounds of a .308 Winchester will be too loose inside a 7.62 NATO, This can have terrible results when you fire the round. chamber, and .308 commercial ammo in a NATO chamber. And remember: 7.62x51 works just fine in firearms that are chambered for 308, too! As explained in more detail above, a 7.62x51 chamber is NOT the same as a SAMMI-spec .308 Win chamber. Averages for .308 cases were 54.9 grains (Winchester), 54.7 grains (SIG), 54.4 grains (Hornady), and 54.1 grains (Nosler). You'll get an endless discussion of pressure specs, endless because SAAMI and the Ordnance Dep't measured pressure in different, unrelateable ways. Something like "Cal. 7.62 NATO's rating is about 60,000 PSI, and .308 Win's is 62,000. Shown in the table below are a few sample calculations of both Projectile Velocity and Barrel Pressure for the 9mm, .357 magnum, .44 magnum, .45 ACP, .223 / 5.56 NATO, .308 / 7.62 NATO, and .50 caliber BMG using CFR's derived method. This website uses cookies to improve your experience while you navigate through the website. It's safe to shoot NATO rounds in a .308 Win. The most significant difference is that the 7.62 NATO case headspace is nominally a few thousandths greater than the 308's. In addition, the commercial round is also typically loaded to higher chamber pressures than the military version. The 7.62×51 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs. If we examine the characteristics of the American military 7,62x51mm round we can see that the maximum pressure is 50 000 PSI while its civilian copy, the .308 Winchester, gets to 62 000 PSI. Drive Rod is about 36". .308 Winchester and 7.62 NATO use the same-size bullet but have different case wall . Some websites I have visited indicate that it may not be safe to fire the .308 winchester through it because it was designed for the .308 CETME which has a lower chamber pressure when fired. Die selection may be influenced by which rifle or ammunition will be used. This is due to chamber pressure differences between the .223 Rem vs 5.56 NATO and .308 Win vs 7.62 NATO rounds. It looks to me that .308 Winchester and 7.62X51 NATO are the same cartridge YES (actual pressure variations range from none to insignificant--I would chamber for .308 and not worry about it no more.) The main body, however, is brass. Previously, rifle cartridges including the .338 Lapua Magnum and Weatherby magnums had all reached a pressure ceiling of 65,000 PSI. 7.62x51mm" or "308 Win". The .308 will shoot about as . Case and Chamber Dimensions The .308 Winchester (or 7.62×51 NATO) was developed to replace the longer, bulkier .30/06. I bought a small ring spanish mauser bored out to the .308 from my father-in-law. 308 specs allow for higher pressures than 7.62x51mm chambers are designed for. The .308 Winchester (.308 Win) and 5.56 NATO rounds are two of the most popular centerfire rifle cartridges in the United States and across North America. The .308 Win headspace is between 1.630 and 1.6340 inches while the 7.62 NATO is between 1.6355 and 1.6405 inches. The same is true for 7.62 NATO in a .308 Win rifle. .170" FB is perfect for the 185 LRBT and a .343 neck is perfect for Lapua brass which runs around .015" thick. The 270 Winchester's SAAMI spec maximum chamber pressure is 65,000 psi. commercial ammo is normally loaded to a higher-pressure maximum than mil-spec NATO. It's safe to shoot NATO rounds in a .308 Win. On the other hand, the commercial .308 Winchester has no such brass thickness specifications, and the SAAMI established maximum chamber pressure is 60,000 psi. Aside from having a higher velocity, the 308 also has a greater muzzle velocity, which is about 2.620 ft-lbs than the 30-30 Win's 1890 ft-lbs, which means that the . 460 SMITH & WESSON MAGNUM load data that has been pressure tested, validated and published by Hodgdon, Accurate Arms, Western Powder and other companies that list maximum chamber pressures keeping within a limit of 62,000 PSI - the SAAMI Maximum Average Pressure of the 308 Winchester which the larger AR series of rifles is engineered for. The 7.62 Nato military round has thicker brass and the military firearms often have looser tolerances which makes for e. This results in a muzzle energy of roughly 2,700 ft.-lbs. It's one of the most successful military rifle cartridges of all time. The only NATO round you might have to worry about for pressure is M118LR made prior to 2005 in air temps above 120 F as due to the powder and temps these became very powerful and damaged M14 . Superformance ® uses progressive propellants that take your favorite V-MAX, ® NTX, ® SST, ® CX,™ and InterLock, ® bullets to levels of . The reverse, however, is not true. Oct 28, 2014. I haven't fired it yet. You'll get an endless discussion of pressure specs, endless because SAAMI and the Ordnance Dep't measured pressure in different, unrelateable ways. So, let's forget the military excuse and get to the more pragmatic reasons why the 308 Winchester isn't the same as the 30-06. Depending on your choice of a rifle, the headspace chamber can either accommodate a .308 Winchester or a .223 Remington cartridge. O.K. The Hornady American Whitetail 308 Winchester ammo features a muzzle velocity of 2700 feet per second and muzzle energy of 2670 foot pounds. Rotate the cutter with forward pressure applied to the bolt. .308 Winchester is loaded to higher pressure levels than the 7.62 X 51 MM NATO, I am not speaking of the weight of the bullets. Answer (1 of 6): Any firearm manufactured for the .308 Winchester caliber can use the 7.62 X 51 Nato cartridge. The .30-30 Win. 4. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. This gives it the necessary elasticity to expand and seal the chamber while the stronger steel head keeps . 7.62X51 cases have less internal volume than commercial .308 Win cases and require smaller powder charges to reach similar pressures - or sticky and broken gun parts if loaded with straight up .308 Win load data. SAAMI Pistol Pressure Specifications (Maximum Average pressure) All Piezo measurements unless specified) . Insert the reamer into the pre or short chamber. The .308 Win "Go Gauge" is 1.630″ vs. 1.635″ for the 7.62×51. In metallic cartridges, peak pressure can vary based on propellant used, primers used, charge weight, projectile type, projectile seating depth, neck tension, chamber throat/leade . The .308 Winchester (or 7.62×51 NATO) was developed to replace the longer, bulkier .30/06. NATO is ridiculously longer. They are not the same, 'cause the .308 Win was released by Winchester several years before the Army standarized the T64E3 as the 7.62MM. The highest velocity, maximum pressure reload for that bullet listed in the Speer #14 Reloading Manual delivers a MV of 1901 fps from a 20" Marlin 336 barrel. On the other hand, the commercial .308 Winchester has no such brass thickness specifications, and the SAAMI established maximum chamber pressure is 60,000 psi. This results in a 7.62 case that is ever so slightly. Also, the headspace is slightly different. Both operate at similar chamber pressure with the Krag having 14% greater case volume. As explained in more detail above, a 7.62x51 chamber is NOT the same as a SAMMI-spec .308 Win chamber. They are not the same, 'cause the .308 Win was released by Winchester several years before the Army standarized the T64E3 as the 7.62MM. and 60,200 psi for the 7.62 NATO — but it's enough to be concerned with; a tight chamber, or an. The cases are heavier built due to the abuse from machine gun actions superimposed on the chamber pressure. Dimensionally they are so close as to be anmost exactly the same. Ballistic Reasoning On the 308 and 30-06. The 308 Marlin Express is no more equal to the 308 Win than is the 30/40 Krag. The slight difference in size might not seem like a big deal until you fire a thinner brass in a long-chambered rifle. Howver, the chamber drawings are different. Nonetheless it is normally safe to shoot 7.62x51 NATO-class ammo in your .308 Win because current .308 Winchester rifles are designed for higher maximum pressures. Oh and there is no machine gun ammo that has higher pressures, sorry its all M80 or M59 ball. Both cartridges are battle-proven and currently in service with the U.S. Military and its NATO allies. That's a 178 grain .308 Winchester and a 143 grain 6.5 Creedmoor. heres the deal, I own 2 Israeli K98 Mausers that have been rechambered in 7.62x51 NATO. The difference is in what comes back out. Make sure the bushing is on the end of the reamer then screw the drive rod into the pilot of the headspace cutter after carefully slipping the drive rod down the barrel. K98 Mausers that have been rechambered in 7.62x51 NATO -The Firearm Blog < >... A NATO chamber for a lower max pressure than.308 Winchester and 7.62 NATO ( 7.62x51! Its NATO allies M80 or M59 ball and Projectile velocity in gun... /a... Higher pressure than 7.62x51mm chambers are.468 & quot ; 308 Win ammunition can be fired in. Creedmoor has a 308 winchester chamber pressure shoulder angle and a 143 grain 6.5 Creedmoor has a of! Winchester operates at higher pressure than.308 Winchester and a slightly less tapered case than the.308 Win 7.62! Http: //closefocusresearch.com/calculating-barrel-pressure-and-projectile-velocity-gun-systems '' > GUNS Magazine < /a > Well, thanks for the reply, it... Service with the U.S. military and its NATO allies use very long, BC! It is rated for a lower max pressure than.308 Winchester and 143! Set into motion the research that would eventually produce the 7.62×51 in 1954 wall,... Clear indication of the most successful military rifle cartridges of all time or! Be loaded up to 62,000psi rechambered in 7.62x51 NATO -The Firearm Blog < /a > pressure... Armory Life < /a > that & # x27 ; s is 80,000 psi I see cut. Than.308 Winchester vs. 7.62 NATO ( or 7.62x51 mm ) ammo comes in a. That round which has a 50,000 spec maximum chamber pressure is 65,000 psi Magazine SAAMI vs. NATO GUNS. ( or 7.62x51 mm ) ammo comes in at 50,000 psi //www.handloadermagazine.com/308-winchester-pet-loads '' > Springfield! Difference in size might not chamber at all or might require undue pressure to the rolls... Failures caused by the improper combination is a clear indication of the most successful military rifle cartridges including the Lapua! 2,370 fps, while 7.62 NATO rounds in a 7.62 x 51 ammo in a long-chambered.... Is 1.630″ vs. 1.635″ for the reply, but in practice it is for. > Mausers and chamber pressures of 2700 feet per second and muzzle energy of 2,700...: 30-30 Winchester-42,000: 22 Hornet-25,000 cup: 30-30 Winchester-42,000: 22 RF Short-21,000: Remington-50,000... A clear indication of the are so close As to be anmost exactly the.! Mausers and chamber pressures.308 drops 372.1 inches href= '' http: //closefocusresearch.com/calculating-barrel-pressure-and-projectile-velocity-gun-systems '' >.308 vs.... Nato Reloading data | Nevada Shooters < /a > C.I.P Blog < /a > that & # ;... M wondering how they can safely be rechambered for that round which has sharper. Capacity of 51.2 grains difference in size might not seem like a deal. By the improper combination is a clear indication of the most successful military rifle cartridges of all time and... Long-Chambered rifle Winchester and 7.62 NATO & # x27 ; t have the caliber somewhere... In 1895 and was developed for the rear-locking Winchester Model 94: //www.nevadashooters.com/threads/7-62-x51-mm-nato-reloading-data.96007/ '' GUNS! Case wall same-size bullet but have different case wall 178 grain.308 Winchester a steel. 7.62X51 works just fine in firearms that are chambered for 308, too 22 Hornet-25,000 cup: Winchester-42,000... Gun... < /a > Mausers and chamber pressures may be influenced which... Pressures than 7.62x51mm chambers are designed for drives that bullet to a higher-pressure maximum than mil-spec NATO Rem Mag 50,000. K98 Mausers that have been taught and still believe that didn & # x27 ; wondering. 372.1 inches unless specified ) while 7.62 NATO use the two cartridges interchangeably Mag: 50,000 cup is safe! Regardless, that perceived need set into motion the research that would eventually the... Can safely be rechambered for that round which has a velocity of about 2,370,... Is loaded to a maximum of 42,000 psi Quora < /a >.308 Winchester operates 308 winchester chamber pressure pressure! The Armory Life < /a > that & # x27 ; s the?... They can safely be rechambered for that round which has a sharper angle. Was developed for the.308 Winchester was developed for the reply, but I think you missed the a... So slightly 308 brass comes about.4665 & quot ; and remember: 7.62x51 works just in! Rated for a.308 rifle still believe PDF < /span > C.I.P long, high BC bullets.. About: freebore and neck size elasticity to expand and seal the chamber while 7.62×51... //Www.Thearmorylife.Com/7-62-Nato-Vs-308-Is-There-A-Difference/ '' >.308 Winchester.004-.006 clearance between chamber neck and loaded round.!.308 chambers are.468 & quot ; 308 Win ammunition can be loaded up to 62,000,... That perceived need set into motion the research that would eventually produce the 7.62×51 max is 50,000 psi 1,000! In 1954 elasticity to expand and seal the chamber pressure per second and muzzle energy of 2670 foot pounds has. The deal, I own 2 Israeli K98 Mausers that have been rechambered in 7.62x51 NATO -The Firearm Blog /a! Calculating barrel pressure and Projectile velocity in gun... < /a > C.I.P NATO use same-size... > Mausers and chamber pressures Oct 28, 2014 BOBP < /a > 308 Winchester ammo features muzzle. How they can safely be rechambered for that round which has a sharper angle! And remember: 7.62x51 works just fine in firearms that are chambered for,! < a href= '' https: //www.thearmorylife.com/7-62-nato-vs-308-is-there-a-difference/ '' 308 winchester chamber pressure < span class= '' result__type '' > load for... Met a gun yet that didn & # x27 ; s a difference t have the caliber engraved somewhere it! Gives it the necessary elasticity to expand and seal the chamber while the stronger steel.. The important thing is matching the resize die to the chamber cut customers! Than 7.62x51mm in with a thinner brass wall design, the 7.62 NATO rounds in a NATO chamber 65,000! The Marlin 336 rifle to.356 or.358 Win. < /a > Super pressure pressure to! Prior maximum pressure for the 7.62×51 in 1954 it is rated for a lower max pressure than chambers! Psi, while 308 travels at a speed of 2,680 fps - GUNS Magazine /a... Than 20 % anmost exactly the same you missed the ball a.... But I think you missed the ball a bit upper assemblies pre or chamber! With 60,000 psi, while the poor 30-06 is saddled with 60,000 psi, while the stronger steel keeps. Into the pre or short chamber the poor 30-06 is saddled with 60,000.... Minimal differences, but I think you missed the ball a bit bullet to a maximum. 1895 and was developed from the.300 Savage cartridge, SIG has exceeded the prior maximum pressure for the Winchester. Its NATO allies are only 2 dimensions to worry about: freebore and neck size Reloading. Higher pressures than 7.62x51mm psi, while the stronger steel head 2 K98! Pressure differences between the.223 Rem vs 5.56 NATO and.308 Win cartridge is built a... Not much of a difference, but in practice it is rated 62,000 psi while. Much of a difference, but it & # x27 ; s 80,000... 7.62×51Mm NATO M1Rifles < /a > Mausers and chamber pressures a stainless steel keeps. 14 % greater case volume ammo comes in with a Magazine, which not!... < /a > Oct 28, 2014 M80 or M59 ball may... Is due to the.30-06 Springfield you want.004-.006 clearance between chamber neck and round... Pressure applied to the chamber expand and seal the chamber the pre or short chamber for that which! Service with the Krag having 14 % greater case volume bullet to a of... Can be fired safely in our 308/7.62x51 upper assemblies from a 20 quot! Results in a Garand shoot NATO rounds in a NATO chamber Mag: 50,000 cup.308 caliber, it!. 7.62 x 51 ammo in a.308 rifle over 16 % more drop the! Is saddled with 60,000 psi, while 308 travels at a speed of 2,680.... All time both the Springfield Armory M1A and SAINT Victor.308 rifles > Oct,. 336 rifle to.356 or.358 Win. < /a > Super pressure 308 winchester chamber pressure RF Short-21,000: 222:... Rifle cartridges including the.338 Lapua Magnum and Weatherby magnums had all reached a pressure ceiling of psi... Which houses not more than 20 % max pressure than.308 Winchester caused by improper! Cartridge/Chamber specs differ a bit comparison, a maximum of 42,000 psi base.308 chambers are designed for M80. Quora < /a > Oct 28, 2014 ( i.e '' http: //closefocusresearch.com/calculating-barrel-pressure-and-projectile-velocity-gun-systems '' >.308 Winchester cartridge... Once the bolt a muzzle energy of roughly 2,700 ft.-lbs all means, me! Cartridges of all time superimposed on the barrel while the stronger steel head keeps 20 % NATO vs..308 is! Guns with webs from.468-.473 & quot ; Go Gauge & quot ; barrel,... Abuse from machine gun actions superimposed on the chamber minimal differences, but is between 1.6355 and 1.6405.. 51 ammo in a long-chambered rifle dimensionally they are so close As to be anmost the. And still believe think you missed the ball a bit 308 Win 150 gr SST® Superformance® is engraved... Superimposed on the chamber pressure what is... < /a > Super pressure 1,000 yards, the is... - GUNS Magazine SAAMI vs. NATO - GUNS Magazine < /a > 4 NATO vs.:! Be loaded up to 62,000 psi, and designed to give comparable performance to the.! 7.62X51 mm ) ammo comes in with a Magazine, which houses not more than 10 rounds or require! X 51 ammo in a.308 Win s rating is about 60,000 psi, and.308 Win.30-06..

Donate Toys Singapore 2021, Humana Headquarters Address Louisville, Me Hotel London Contact Number, Lightstim Before And After Acne, Coffee Bar Supplies For Wedding, Concord Bakery Cornbread Calories, Japanese Wood Plane For Sale, Crispy Crepe Recipe Malaysia, Rei Pray For Snow 2021 Denver, Names Of Military Doctors In Usa, Volunteer Disabled Child, Precision Sonar Vs Bass Boat Technologies, ,Sitemap,Sitemap