Over heard @ gun counter

[Zundfolge]

Here's how I've always heard it.

.308 is higher pressure than 7.62NATO so shoot all the 7.62 out of either .308 or 7.62 guns you want, but don't shoot a lot of .308 out of a 7.62 chambered gun.

.223 vs 5.56mm is the opposite. The 5.56 is the hotter of the two so don't shoot it out of .223 chambered guns.

[UrbanWolf]

Here's how I've heard it.

.308 is higher pressure than 7.62NATO so shoot all the 7.62 out of either .308 or 7.62 guns you want, but don't shoot a lot of .308 out of a 7.62 chambered gun.
.223 vs 5.56mm is the opposite.

I thought people shooting 308 out of M1A, FAL, and SCAR H all the time.

[<MADDOG>]

Here's how I've always heard it.

.308 is higher pressure than 7.62NATO so shoot all the 7.62 out of either .308 or 7.62 guns you want, but don't shoot a lot of .308 out of a 7.62 chambered gun.

.223 vs 5.56mm is the opposite. The 5.56 is the hotter of the two so don't shoot it out of .223 chambered guns.

+1

CUP vs PSI....308 is loaded to a higher pressure than 7.62x51, just like 5.56 is not the same as .223 (inverse).

And I have heard of challenges when loading .308 in M14/M1A rifles for this very reason (specifically with op rods snapping). I have shot FAL and G3/CETME platforms with .308, but not very much, and they are a totally different operating system.

My $0.02.