Depends on your gun and where you get your brass from. Shooting reloads out of Glocks in my experience tends to shorten the life span of the brass because of the unsupported chamber that causes the "Glock Bulge." I have had brass get sketchy on me after reloading 9 times even under lighter loads (147 gr "gaming" loads). But the issue is that when I shoot at the range other brass gets mixed in with mine and I am not sure if they have been reloaded before. Last year I started to mark my new brass and separate them from any other brass stock I have. I am going to see how long they last. But spot check the casings to be safe. Sometimes the brass just doesn't want to be resized and I find it safer just to toss it.
I can see the argument for rifle cases because the case stretches out and you need to trim the case so the material is slowly getting thinner, but I have no personal experience reloading rifle cartridges. I plan on starting to reload .223 when I get my AR complete.
Last edited by Dubels; 11-18-2012 at 9:29 AM..