I shoot a glock 20 and 29 both with kkm barrels. I am casting with a mp 200 grain Cramer pin mould sized to .401". My notes are .400". I have tried wheel weight alloy, 1/2 ww 1/2 pure, and 2 part we 1 part pure. I have tried unique, tightgroup, longshot, and 800x. I even tried some aluminum plain base gas checks. These barrels still lead like hell. I have tried light medium and hot loads. I have pulled loaded rounds and measured to see if the bullet is getting swaged down and they are not. The only thing I can think of is I need a .402" or .403" bullet but then it won't chamber in my barrels. Any ideas?