Oddly enough, I've had good luck with the Remington Thunderbolts. My only complaint is a dirty gun afterwards.
Haven't seen any ammo shot out of any gun that leaves a clean gun, what's the difference if you clean a lot of crud or a little crud as long as the gun goes bang and you hit the target. I'm going to clean the gun no matter what.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.