I spent hours cleaning it when I got it and after I shot it with the .429 bullets. This time after shooting the .432's it required a lot less cleaning it seemed to have no lead deposits at all just powder. When I shot the 429's the first two shots were right on then they just spread out after that with severe leading after five or six shots. I did notice one other thing about the .429's the bullets in the cylinders next to the one being fired actually melted the lead of the bullets to where there was a notch in them. It could have been they were a little longer than the .432's when seated. I think the bullets just being that small for the cylinder had enough gases escape arround them to start melting them. Like I have said all I know is from shooting it and researching (reading) on the topic but it seemed to fix my problem with larger bullets. My only question remains do I have enough ooomph to properly kill a deer. I do not have a chrony but intend to in the near future.