I have bismuth shot from two different places, that I use for reloading. Have also cut open shells and tested it (pliers test). It's not all the same, hardness I mean. Rotometals bismuth shot is alloyed with 6 % tin to help hold it together, and not be frangible like the pellets in some loaded shells a few years ago were. It's density is 9.6 gr./cubic centimeter. Don't know about other sources.

If it's true copper plating, and not just a wash, it should help patterns.

SRH


May God bless America and those who defend her.