If the max. load for a brass frame were considered to be 25 grains to avoid causing the brass frame to stretch, then 15% would equal 21.25 grains of 777 by volume.
The equivalent load for 20 grains of BP would be 17 grains of 777 by volume.
The equivalent load for 22 grains of BP would be 18.7 grains of 777 by volume.
Duhhh…
Someone wasn't thinking this out. Instead of multiplying by 0.15 and then subtracting that from the original number, it's simpler to just multiply the first number by 0.85!
X - (0.15X) = 0.85X
dONT U THINK A 30 GRAIN PELLET OF PYRODEX P WOULD BE A SAFE LOAD IN THIS REVOLVER,THE CANNISTER SAYS FOR CAP N BALL REPLICAS
My Pietta is steel framed.