I'm using a Cast Bullet Engineering 509 -325.
I have used 1 1/2 FG Holy smoke (cartridge), but velocity was lower than expected at about 1600fps. First time with 2fg.
HS is the best powder I have used so far - burns cleaner than Swiss or the Curtis's and Harvey No6.
hopefully the 2fg cartridge will shoot well too.
Mine is a Westley Richards 1871 retailed by John Dickson & Son, Edinburgh.
This load kicks - don't shoot it prone!
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