I have a Mossy 935 with a 26 inch barrel. I have a problem with the action moving slowly after a couple of shots I have cleaned the whole thing top to bottom 3 or 4 times. It worked smoothly in the house and when I get out to the field 2 shots then bam its gummy again. This was in the cold and warm weather. I can put my dads bolt in my gun and it works without a hitch. Anyone else have this problem. His working might just be cause it has been used more.