Ryan, I had the same problem with mine when i first got it, i changed my shells. i was using light fields and i switched to remington accutips. problem solved. i tried cleaning the extractor, took it apart and sanded down the paint but that didnt seem to improve anything. try changing your ammo.

as for the original poster, the 20 guage has plenty of power to knock down a whitetail as others have said. personally i think its personal preference,, i use the 20