Well I have around 200+ rounds thru my Glock 44. It is very picky and the only ammo that works really well is CCI. 40 Grain. Most youtubes indicated that. Idon't have than many rounds of cci but if it turns out that the cci is great, I'll limp along with the other stuff. If not I'll send it back to glock and if it can't be improved, I'll trade it on a taurus tx22.