any of you guys ever bought snap caps for a 12ga? i bought a couple from a-zoom, and i've cycled them through a few dozen times. now the paint/finish is chipping and even the metal is getting nicks, dents, gouges, etc. is this typical of all snap caps, or just a-zoom? there seem to be a couple companies out there such as traditions performance firearms and aa that make snap caps that look better, although the aa ones look for all the world like live shells. any thoughts about any of those brands? are my expectations off?