7.62mm Vs .308 Time to clear up the confusion. Rated Red's Luke Williams breaks down the differences between 7.62 and .308. ___ Check this out. There are multiple 7mm magnum rounds out there, but presuming you’re comparing the 7mm Rem. Mag. (the most popular such round) to the .308 Win., the main difference is that the 7mm is
M16s of the Great White North – Canadian involvement with the Colt M16 series of rifles began as a result of that country’s Small Arms Replacement Program (SARP), which sought to supplant the FN-FAL-based C1A1 rifles chambered in.
January 20, 2016: At the end of 2015 Turkey has ordered another 15,000 of their new MPT.
The G3 is a 1950’s era 7.62×51 NATO weapon weighing 4.5 kg (9.9 pound). The most common model, G3A3, is.
However NATO EVPAT testing says 7.62 service pressure is at 60,190 psi. With 75,275 as the max proof pressure. This would put 7.62 at a service pressure very close to .308. Close enough not to have to worry one way or the other about higher pressure. So it is 7.62×51 = Service Pressure of 60,190 PSI and lists .308 = Service Pressure of 62,000 PSI
Due to the drop in pressure over this longer distance.
Starting in the late 1950s, Eugene Stoner’s original 7.62×51 mm NATO-chambered AR-10 was refined by ArmaLite engineers Robert Fremont and L.
Beware, custom loaders! In addition to differences in the chambers of .308 Win and 7.62x51mm barrels, there is a critical difference in the brass. Externally, the two cases are identical. Internally, the difference in capacity can lead to massive pressure differences. A .308 Winchester load is much too large for a.
7.62X51 in a SAAMI chambers raises pressure, .308 in a 7.62 chambers lowers the pressure, both by up to 5,500psi (TAR documented) 7.62 chambers are not rare, there's still plenty around and even commercial barrels can be chambered to 7.62X51 depending on the reamer and drawing number.
Roller-Delayed Revival: The Heckler & Koch SP5K – In 1959, the improved version of the CETME, chambered in the new NATO standard 7.62×51 mm, beat out the SIG 510 and AR-10.
This delays the bolt from opening long enough for the pressure inside the.
A Little More About .308 vs 7.62×51 Thanks to comments from McThag and a post by American Mercenary for reminding me of the differences in how the pressures are measured between the two cartridges: .308 in PSI and 7.62×51 in CUP ( Copper Units of Pressure , an older way of specifying chamber pressures).
7.62 X51 Vs 6.5 Creedmoor 308 winchester which is the commercial name for the 7.62×51 NATO. The other two ARs were chambered in non 5.56 calibers one being the aforementioned 6.5 Creedmoor the other in .458 SOCOM. The Modern. 6.5 Creedmoor is specially designed to offer low recoil rounds without compromising pinpoint accuracy. And another thing that the military should
One of my personal rifles was a Midland 2100 chambered for 308 Winchester. It was made in England by a small company – Midland Rifle Co – but owned by Parker Hale.
The .308 Winchester has a stronger maximum pressure, so guns made for the 7.62×51 NATO may not tolerate the higher pressure, leading to failure. However, all guns that are made for .308 Winchester will take, and should safely fire, the 7.62×51 NATO. As always, speak with a gunsmith or consult the manufacturer before interchanging rounds.
The barrel is clearly marked 7.62×51 with a 1/10 twist but the receiver is marked .308. I know that the only real difference between a 7.62 Nato and .308 is that the .308 is a higher pressure round. I guess my questions is, is it supposed to be stamped this way? Are all DPMS rifles in .308 come with the barrel stamped with 7.62 on it?
What I am talking about is the maximum pressure of the two cartridges as determined by the U.S. government (7.62×51) and SAAMI (.308). And therein lies the problem and confusion. While the government lists the 7.62×51 pressure specs as 50,000 psi, it was actually determined using the copper crusher method, and is in fact 50,000 CUP.
So. Comparing .308 Winchester and 7.62X51: .308 Win. came first. The two ended up differently.
Like the 5.56/.223, the difference between commercial SAAMI-spec .308 Winchester and 7.62 NATO is in the chamber, but it’s in a different place. The difference in these two isn’t the throat, it’s the headspace. NATO is ridiculously longer.
I've seen so much back and fourth on this over the years. In a nutshell 308 is nothing more than 7.62×51 with tighter chamber tolerances. They are in fact loaded to the same pressures nominally all the confusion come from the simple fact that the military calles the pressure measure of CUP PSI erroneously.
Review: Century International Arms Zastava PAP M77 PS Semi-Automatic Rifle – The best single group of 1.90” was produced using Winchester 7.62×51 mm NATO 147-gr.
in a best group of 2.38” with an average of 2.86”. The Century International Arms Zastava PAP M77 PS.
It should have procured at least part of the 7.4 lakh inventory of 7.62×51 mm assault rifles (ideally about 2-3.
and to fill the voids in perimeter security of the army camps. The need is to.
Loading The Versatile .308 Winchester – 308 rifles shooting, I bought a box of 500 once-fired military surplus 7.62×51 mm NATO cases from Everglades Ammo.
handloading manuals by about 4 percent and mostly use them for low-pressure cast.
7.62×51 really is less pressure than .308 – 50,000psi vs. 62,000psi. Using any kind of military rifle (including the M1A) its important to stay around 50,000psi, due to the fact (eg) the M1A/M14 uses a gas port in the barrel to draw off a certain PSI to cycle the action.
Can you shoot the 7.62×51 in a .308 caliber chambered rifle? The pressure curve of civilian ammo might be such that pressure at the gas port of a semi-auto military rifle would be high enough to cause damage to an operating.
Advances in U.S. Sniping Ammunition: From Vietnam to Afghanistan – If you served as a U.S. sniper in the Vietnam War, no doubt you had high regard for that era’s sniping load: 7.62×51 mm, M118 Special Ball.
standards for overall length and maximum chamber pressure.
The 7.62×51 or 7.62 NATO (which is another common name for the caliber) was officially introduced into military service in conjunction with the M14 rifle. The .308 Winchester is generally loaded to higher pressures, but they are generally interchangeable in rifles chambered for one round or the other.
The Deadliest Bullets, Military Rifles, and Revolvers on Planet Earth – 38 Special ammunition and higher-pressure, harder-hitting +P rounds.
The round weighed 25 percent more than a 7.62×51 rifle round and had a top speed of 1,250 feet per second. Unlike traditional.