Is there anything wrong with shooting ammo like this through it? http://www.aimsurplus.com/acatalog/Korean_Surplus_30_06.html I might hunt some with the gun but all I really want to do is shoot target from 300-400 yards at some point. I just want to make sure that shooting surplus ammunition wont hurt the rifle. My fiances step brother has an 8mm Mauser that he bought some old ammunition for and he says that its highly corrosive to the chamber? He also said that shooting FMJ rounds is hard on the bore of a rifle? Sorry for being such a noob...Just trying to learn.