ORIGINAL: gopher slayer
barrel life is just a mith, ok sure it might decrease in accurasy after a long time but not that bad, as long as your not crap shooting a semi auto. you will fine with any.
gopher slayer
I assume you mean by
crap shooting a semi auto you're referring to "spray & pray" or just a lot of rapid fire burning the rounds up.
I've got a BAR in 30-06 but don't shoot it any faster than I would a bolt action, and always allow for a little "barrel cool" time when working up loads or practicing a lot at the range.
firstshot
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Make your first shot count!