I find the cartridge rim beaing beaten up from repeated chambering is as bad as the crimp coming apart. The crimp can be taken care of with a little wax drip to seal it. Battering the rim often raises burrs along the rim edge. These can cause malfunctions. I always check the rims for burrs that can cause the cartridges to hang in the magazine tube or chamber.
In a pump the Remington 870 is about as foolproof as any. Semi-autos that get the nod are the Beretta and Benelli.
I'm interested in how the coyote gnawled on your buttstock? Are you poking him with the wrong end? /ubbthreads/images/graemlins/wink.gif