7.62x51 and .308 - Page 2

jonnyc · June 8, 2015, 09:24 AM

"This isn't "internet garbage", since it is a fact, and has been long before the existence of the internet."

It is only a fact if you pick and choose the factory loads you count. Otherwise, any comparison between factory loads of similar bullet and powder weights will show no difference in pressure. You cannot make the blanket statement that .308 loads are higher pressure than 7.62x51 loads.......it just ain't so.
And that's about all I'll have to say on this topic that has been proved and beat to death on just about every gun website I frequent, multiple times

**44 AMP** · June 8, 2015, 11:06 AM

Quote:

You cannot make the blanket statement that .308 loads are higher pressure than 7.62x51 loads.......it just ain't so.

So, how do you explain higher velocity with the same bullet weight from the same size case without higher pressure? (from equal barrel lengths)

I didn't say dangerously higher pressure, just higher pressure.

I'm looking at commercial sporting ammo vs GI ball.

Husqvarn · June 16, 2015, 03:44 AM

Own experiance was the military 7.62 reload caseing got stuck in my Savage 99 hunting rifle, had too use the cleaning rod to punch out the bugger

Last time I used army amo for target praktice.

745SW · June 16, 2015, 05:29 AM

The 7.62x51 brass is/could be thicker than 308Win causing a difference in pressure with the same powder and charge weight. The 30-06 higher case volume gives it an advantage for bullets heavier than 150 gr.

RJay · June 16, 2015, 08:30 PM

Well, I no longer have a 7.62 NATO chambered rifle, but I still have a couple of .308's. The SAMMI recommendations/warning is this, It is safe to shoot 7.62 Nato ammo in a rifle chambered for and marked for .308, they advise not to shoot .308 in a rifle chamber and marked 7.62 ( this was also posted in the American Rifleman ). Your gun, your decision, but it is not internet garbage. I've shot a lot of 7.62 in my .308's but not the reverse. I won't even go into the Spanish guns.

June 8, 2015, 09:24 AM	#26
jonnyc Senior Member Join Date: July 20, 2009 Location: PA Posts: 1,731	"This isn't "internet garbage", since it is a fact, and has been long before the existence of the internet." It is only a fact if you pick and choose the factory loads you count. Otherwise, any comparison between factory loads of similar bullet and powder weights will show no difference in pressure. You cannot make the blanket statement that .308 loads are higher pressure than 7.62x51 loads.......it just ain't so. And that's about all I'll have to say on this topic that has been proved and beat to death on just about every gun website I frequent, multiple times __________________ 2024 PA Cartridge Collector Show; Aug. 16-17, 2024!!! Buy...Sell...Trade All Types of Ammunition & Ordnance PM or email me for 2024 show details.

June 16, 2015, 08:30 PM	#30
RJay Senior Member Join Date: November 2, 2005 Location: Arizona Posts: 1,936	Well, I no longer have a 7.62 NATO chambered rifle, but I still have a couple of .308's. The SAMMI recommendations/warning is this, It is safe to shoot 7.62 Nato ammo in a rifle chambered for and marked for .308, they advise not to shoot .308 in a rifle chamber and marked 7.62 ( this was also posted in the American Rifleman ). Your gun, your decision, but it is not internet garbage. I've shot a lot of 7.62 in my .308's but not the reverse. I won't even go into the Spanish guns. __________________ Ron James

June 16, 2015, 03:44 AM	#28
Husqvarn Member Join Date: June 14, 2015 Posts: 39	Own experiance was the military 7.62 reload caseing got stuck in my Savage 99 hunting rifle, had too use the cleaning rod to punch out the bugger Last time I used army amo for target praktice.

June 16, 2015, 05:29 AM	#29
745SW Senior Member Join Date: August 25, 2011 Location: California Posts: 776	The 7.62x51 brass is/could be thicker than 308Win causing a difference in pressure with the same powder and charge weight. The 30-06 higher case volume gives it an advantage for bullets heavier than 150 gr.