Is .223 worth it?

[tacfoley]

Nice to hear you are way ahead of me. I think 7.62 is the other way around with 308 in a 7.62 being the problem combination.

.308Win, in general, operates at around 2000 psi higher than the usual 7.62z51 NATO 150gr round. SAAMI figures.

Also, AFA UK proof houses are concerned, this is borne out by the proof stamps -

1. 7.62x51 = 20 TPSI.

2. .308Win = 21 TPSI.

tac

[Parabuteo]

.308Win, in general, operates at around 2000 psi higher than the usual 7.62z51 NATO 150gr round. SAAMI figures.

Also, AFA UK proof houses are concerned, this is borne out by the proof stamps -

1. 7.62x51 = 20 TPSI.

2. .308Win = 21 TPSI.

tac

Spot on although there are still arguments over what is what.

7.62 NATO also generally has thicker brass and the chamber will have several more thou headspace. 7.62 NATO is circa 146gr although M118 is chucking 175gr. Also be aware that some older 7.62x51 chambered rifles may be tight bore to get the best out of the 7.62x51 NATO that was issued for NRA competitions. The bullets are circa .306

I have a 7.62x51 AR on order Tac, it will have to be that as it is what it says on my ticket, but it will be more than capable of shooting .308. Oddly because of the way my licensing authority work I have sold my .308 but kept .308 Win and 7.72x51 NATO on the ammo allocation as I will hand load cases stamped .308 Win, but also shoot the occasional surplus round through it. Same goes for my BAR15, I have allocations for 5.56 NATO and .223 Rem, just in case Mr Plod gets confused by headstamps.