You mean to say that the cylinder of the Walker holds more BP or BP substitute than does a .44 cartridge? I would have thought that the opposite would be true! Besides, I intend to use the Walker only in SASS/CAS matches and to use the Holy Black exclusively in that firearm.
I am undecided as to what granulation of BP FG (Cannon powder, FFG Rifle powder, FFFG pistol powder or even FFFFG priming powder.) I lean toward the middle ground here, either FFG or FFFG but I know next to nothing about the Walker/Colt nor which would be the better fire arm ASM or an Umberti. As far as loads are concerned I will use a reputable reloading manual and let the gun decide which load it digests best as well as which bullet/ball it prefers.
What, if any, is the price diffrence between the two firearms? If they are compairable in price and quality and both have a replacement cylinder I may purchase either. If, however one comes in .45 caliber that one will be purchased if it has a replacement cylinder or just comes with a .45 cylinder/barrel as an orginal part of the revolver.