I use the Lee 450, card wad and homemade lube ( bees wax, olive oil, lard ) and 59 grains 2f ( Lee 4.0 scoop ) in several 50's and it works very well, I use the blow tube between every shot ( about 4-5 good blows ). and usually only swab when I'm done shooting, or after 20 - 25 shots. I think lube & blow tube is the secret ( couldn't hit a flock of barns before figuring that out )