I shoot Federal paper "Gold Medal" (bought a bunch on sale at BP) and have had great luck with them. I have only had my bismuth version tested but I swap back and forth lead for bismuth regularly, might want to add a 1/16" card under the crimp with lead as the volume is fractionally smaller.
Federal paper (cut to 2 1/2")
Fioche 616 primer
Helix 18 wad
20.0 gr. International
1 oz. Bismuth
6 point crimp
Had these tested at Precision. Avg velocity 1264 fps. Avg pressure 7547 psi.
Shoots soft and whacks ducks over decoys, with lead equally good on clays.
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