>>2290686I would take the 7.62x39 Russian or 7.62x51 NATO.
I have never served in a conflict, I'm currently in the Army reserves. However the regulars who I have spoken to said they would prefer to use Battle Rifles that chamber the Russian or 7.62 NATO round, simply because it kills the enemy dead. You see they fought in Afghanistan, and those Taliban and Insurgents don't believe in self preservation, once they get shot, they don't stay down and keep fighting till they die, usually on heroin or opium and the taliban don't come to rescue the injured, they just leave them or they also die too.
We have a a couple of L129A1 in our battery armoury which have been used in Afghanistan liberally as a battle rifle rather than as a marksman''s rifle