Back in the day , using a 125 gr bullet , or lighter . The std powder charge was 21-22. 0 grs of W296 , H-110 . That's a max powder charge for the 41 magnum using the std 210 gr bulllet , and that was in an " N " frame . So do you see where I'm going with this . That much powder in the much lighter K-frame . The magnum ball powders (W296 , H-110) seem to be the worst for forcing cone erosion over time . Regards, Paul