Mine was so bad that if I was shooting more than 100 shells, I would take a break to clean the wad crap out of the tube. These optima chokes are super-long, maybe the difference in material has something to do with it, or maybe the tube and barrel need a little bit of oil.TC said:Furner, I am having the same kind of problem with my new beretta. It seems that the plastic really builds up in these guns. Mine seems worse around the forceing cone area. I wondered since it was back bored if my brush was not working very effectively. I will have to give the bore scrubber a try.