I bought 500 rounds of the Nobel Dynamite (also says Geco) 124gr. 9mm fmj. Got a good deal on it from Aim Surplus. Everything I've read was positive about the ammo. I've shot 200 rounds of it through an XD, HK, and a SIG. Every box has rounds that either take 2-3 hits to go off (good firing pin marks on the primer) or won't go at all. Aim said to send it back and they wold exchange it. Anybody else had trouble with it?