I shoot a Remington Spr 453/Baikel. It has never jammed on me. I used for duck hunting and dove hunting. My only problem with the gun is it doesn't eject the 3.5 inch shells well. But, there is a gas adjustment to remedy this situation. I just don't shoot the bruisers enough for me to adjust the gas. It is a good gun for the money. Check this short clip of how tough the Baikel is...
http://www.svmag.com/test_baikal.wmv