Lancer Magazines and Rifle Reloading? in Rifle/Shotgun Posted March 20 I use Lancer mags and I have found that there are no issues with the metal feed lips tearing up the brass? And as a reloader I would specifically not use them if they did. In fact I specifically use Lancers in my .458 SOCOM because they work great and don't tear up the brass. Yes they have metal feed lips but they are finished off smooth (not just a stamped out part with a sharp raw edge) and do not even scratch the brass?