Have a question for ya when shooting 3 1/2" Magnum Blends in my Super x 2 sometimes it will eject the fired case and slam shut leaving a empty chamber. The shell in the magazine fails to feed , this happens only with the Mag. Blend everything else works fine. The gun is clean and all of the parts look fine could it be that since this shell carries such a heavy charge that it is working the action that fast that it is passing over the shell in the magazine and is anybody else experiencing this problem?
I have not had that problem with the Magnum Blend shells when shot through any of my guns, including a Winchester SX3 but they do have a real kick to them!
When things don't work as they should, my first reaction is to clean everything very thoroughly, even it it looks clean and even if I've cleaned it recently. In that process, I may see something that's causing the problem, may just a bit of "gunk" somewhere.
If that does not solve the problem, a real expert on the SX2 is Stu Wright at Wright's Gunsmiths. You can reach him by telephone at 618.357.8933. He knows as much about Winchester guns as anyone I know and he's a very nice man who'll do everything he can to be of help.