Hi all. Just got a MP 358-125 mold and am starting to play. I'm casting for a PT92 with a bore slugged @ .357". I cast some with 50/50 Pb/WW +3% Sn. Haven't shot these yet. Read on another thread that more Sn than Sb will leave Sn trapped as nodules in the bullet and tin the bore. I had metallurgy in college ( a long time ago!) and understand this. My question is, what alloy will get me the ductility for the HP to work and still hold up @ max 9mm velocities? I've got pure lead, WW, superhard & Sn so I can make whatever I want. Haven't got the 9 shooting completely free of lead yet. Getting bullets to proper size helped immensely but I still get some @ 12 o'clock for the first inch of the bore on this gun. Only in the 12 o'clock position though. Maybe some copper fowling there? My .40, the first I've cast for, shoots lead free with Water dropped WW & 75% WW alloys.