Tried my soft 50/50 alloy ac and quenched also straight WW with some pewter both ac and quenched still no joy gotta be that unsupported nose on it me thinks , I did experiment a few yrs ago and bumped (squished) the nose till it was .350 and they shot a lot better even killed a doe with one that year . Maybe they were designed with that small nose for good feeding /chambering in the semi model 8 and 81 ?