I recentley picked up 2 Savage 223 rifles, a model 10 and a model 112. Both have 1/9 twist barrels. I was trying different ammo to see what worked best, 55 gr FMJ (Fiocchi, Hot Shot), 69 gr (Prvi, Bitter Root valley) and some 40 gr Fiocchi. The 40 gr was noticable more accurate then the other ammo. My questions is since the 40 gr is about 3,600 FPS does that lead to faster barrel wear and shorten it's life? The other ammo ran from 2,800 fps to 3,150 fps.
Thanks, Ken