I have 2 SX2s Absolutely no problems with either. Have had 1 since they came out, and the other 2 years. But they are semis---so you do need to keep them reasonably clean (dirt cleaned out of operating area of receiver). No problems with the 1 1/8 oz shot loads for clay targets, but the 1 ox loads are just too light and occasionally will not eject the shell--but it was not even designed to shot them...so being it can on the 1 1/8 oz of shot loads is a plus. If you use 3 1/4 dram equiv you will never have a problem.