I'm a fairly new shooter and not as knowledgeable about the subject as you fine gents. Is there any issue with aluminum cased ammo? Trying to research online has only brought me to forum after forum without much info, so I figured I would ask the local forum. I have a .45 Sig 320 and a 9mm Shield and put about 50-100rds of each whenever I go to the range, which is about every 2-3 weeks. Since I don't reload, is there any other reason that I shouldn't use aluminum? Like I said, I'm not doing torture tests and mostly shooting indoors. I like the price as long as it doesn't hurt the guns.