Have feed my 930 all sorts of loads, on the long barrel I have not had a problem, the short barrel has rejected a couple of light loads but I suspect that was only because it was at the end of several hundred rounds and the lube was wearing a little thin. Did first take to the tube and shaft with some wet and dry paper, down to 1200 grit but I will happily agree that that was a bit excessive however things are as smooth as silk. Good lube, understand from other topics you have one called "Frog Lube" we don't get it here but I understand it works well, others might wish to confirm or put you on to something else. Good luck, play safe and have fun.