Sent some repurposed WW's on a quick little errand today, mission accomplished! Still searching for a load my BPCR likes but will resume this project after a trip to eye doc. It seems to like both the 405 and 500gr Lyman boolits over BP but I can't see the target @ 100 yds.
45 Colt load was awesome! 25 yd offhand group just a tad over 3" from a 4 5/8" Ruger Blackhawk! No leading in either firearm, used SPG lube on all bullets. 255gr Lyman Keith boolit over 7.5gr Universal Clays.
Super Grade M70 seems to have developed a knack for crowding five
jacketed bullets into under .8 inches, BTW. Store-bought bullets from a 30-06 but still very satisfying.