I bought a new stainless mini-14 in 2002 (non-rancher) an have put god who knows how many wolf and other cheap rounds thru it. Within that time, I've given it one quick cleaning and it still goes strong. Only reliability issue I ever had with it was with this plastic cased crap I bought about four years ago. Every so many rounds or so, it would yank the brass rim off and cause a jam. Other than that, never a problem with metal cased ammo and this gun is DIRTY!