Thought I would post this here as so many of you have maxi's. Started out with mine using A1680 powder behind a 185gr FPGC bullet beginning with 25gr and working up. All the way up to 29gr charge the soot problem remained terrible and accuracy sucked---large groups and somewhat erratic shifts in POA. Finally woke up, reread Steve's loading data from 357max.com, and switched to CCI 450 primers from the 400's I was using. First test load was 26gr of 1680 and the soot virtually vanished. Got a 1" group at 28gr with no signs of pressure. More work needed but I'm getting there. I understand that 1680 is the slowest powder recommended for this cartridge and it apparently needs the magnum primer for proper ignition, at least behind this bullet. YMMV. Usual disclaimers about charges used. Goatwhiskers the Elder