So i'm new to the GT forum and i recently got my ccw permit,and am a proud owner of a glock 19, glock 27 and a beretta neos u22. the neos i got used and it really looks like there was very little rounds shot through it. the problem i have is that every 8 rounds or so i get a fail to load. slide does not fully chamber the round. I put around 100 rounds through it this weekend and it's the first i shot it so i stripped and cleaned it put back together and cycled rounds through it manually with out actually firing it and i notice that it does the same thing. I notice it scrapes the jacket and puts a small dent on the casing of every round i cycle through it. and about once every eight rounds i get the failure to chamber the round completly, i have to tap the back of the slide to seat it fully.any help would be greatly appreciated.