New AT finally arrived and a little confused.

[Teddy]

Forgive the potential topic repost.....So I finally get my AT home and I'm looking it over, very impressive and I agree the thing is built like a tank. I roll her over and on the barrel is stamped 7.62 x51mm which left me confused since all the markings on the outside of the packaging etc state 308win; which is what I expected to see on the barrel. Am I to assume that I can only use NATO rounds since there is potential to damage the weapon if I use .308 rounds? With the manual stating the caliber is .308/7.62 and round selection being counter intuitive to the AR platform which I'm used to, any guidance would be appreciated.

Thanks,

Teddy

 

[Jrb572]

It will shoot .308 just fine

 

[Engine 22]

7.62x51 IS same as .308win. Don't sweat it.

 

[AndroCorpInd]

So funny I get old school military guys that argue this with me all the time. It's the same dayum thing!

 

[Ledzep]

As I recall, this all sparked from a Copper Units of Pressure (CUP) vs. PSI issue. 50,000 CUP is not equal to 50,000 PSI, and there is no direct conversion factor... but that's a can of worms...

Long story short, whatever difference may exist (IF one does at all) isn't worth worrying about. Semi-auto or otherwise.

 

[GongShow]

Just a metric way of saying .308

 

[Travis S]

You're gtg man. As stated.

 

[malsa82]

I've shot both through mine, GTG!!

 

[Teddy]

Thanks for the info guys. My concern was the pressure issue stated above. I didn't want to ruin my new toy! Today I should be able to mount my S&B and tripod and get to the range sometime this weekend.

 

[fx77]

FWIW here is an article and a table at its end to convert CUP--PSI...

Formula for converting CUP to PSI

 

[GIXXER2000]

There is only a VERY small difference in the shoulder between 7.62x51 and .308. My SSG-04 doesn't chamber the 7.62X51 as easy as .308. I called Steyr and they said it a small difference in how the chamber is milled. My AI doesn't care chambers both without issue.

 

[remington patriot]

That stamp translated=HAMMER

 

[s002wjh]

Fulton Armory: What's the Difference between .308 Winchester & 7.62x51mm NATO?

7.62x51mm NATO or 308 Winchester? What's the Difference?