i picked up a .308 survivor rifle ,and have a few questions . anyone know the twist rate and are these supposed to come with a sling?? i noticed it stated on New England's site ''sling'' was included but there wasn't a sling in the box . i bought it new at a local Mc Sports on sale for $219 if anyone is looking for a deal , this is the cheapest price i could find. i would like to know the twist because i do reload and would like to know what grain bullet they like ,anyone have a pet load?? i also have some 7.62x51 south african surplus i that i feed my cetme with ,how would the survivor handle this?? you've got an impressive site here, thanks all !!