i have a 870 20 gauge wingmaster and i have ap problem with it. i got it as a christmas present from my boss and it is probably 15 years old or more and he said has never been shot a bunch of time. well i have had it two years and when you pump it is stiff and when you go to shuck a shell back in it they sometimes do not go in smoothly and required "double pumping." i have shot the gun a ton to see if it was just new and have no idea what it could be. i have cleaned it and done everyhitng i know. anybody have any ideas? the gun is an awesome rabbit hunting gun its just the gun is not functioning properly. i have many wingmasters and they all are 100 times smoother than the 20 gauge. thanks.
