I just purchased this gun and last night I took it to the range for the first time. It shot very well and has good accuracy, however I am having a problem with it chambering the last round. For some reason the slide remains open like you fired the last round in the clip but there is 1 bullet left. So I have to pull the slide back a little more and chamber the final round. I'm using the 2- 9 round clips that came with the gun and they both do the same thing. I even tried just loading 5 rounds in the clip and it still holds the slide back with one bullet left to shoot. Has anyone experienced this before?