Just wanted to pass along that I have one of the Ruger Old Armys 5 SS with a R&D conversion cylinder I bought from Taylors also in SS. With Pyrodex 30gr equivalent pellets, Wonder Wads, and a Speer balls it shoots about 6 low and a bit to the right at 50. But, shooting 45 Colt in the R&D cylinder it is dead on at 50 shooting into 2 or 3 inches. I reload my own Cowboy Ammo consisting of a Western Nevada 255gr LSWC over 8 gr of Unique for around 800 fps. I plan to try 45 Colt loads using the 30gr Pyrodex Pellets, once I find cast bullets with a softer lube appropriate for black powder. The great thing is that the R&D cylinder allows me to shoot smokeless 45 Colt loads at the local indoor range I frequent. Living in Southern California the closest outdoor range that allows black powder in 60 miles out one way.
