Re: 35 whelen pump
I have the same issue with mine! Most times, the action opens during recoil. If I shoot it standing up with no hand on the pump handle, it will actually auto-eject! I had it to a Remington certified smith who told me if he roughed up walls the chamber a bit it might hold the expanding cartridge case better - didn't change a thing!
I'm loath to mess with it cause it shoots so good, but that is a bit un-nerving!
Big LSWC's rule