HWD - for general target type rounds, I use Red Dot, Green Dot, Clays, PB, and 700X. All give me around 700 to 900 fps. For me with 255 gr lead RN bullets, I get great accuracy with my RRH with a scope - inside the 10X at 25 yards and 3-5" groups at 50. (I'm not the best pistol shot...my son can do better with the same gun and load.)
I also use H4227 but I don't get that much more in velocity. The case is really not designed for high pressure loads and can separate/rupture. Some people try to pump them up to 44 mag levels but the case isn't made for that. Plus, if you do go that route, you want to make sure it's in a good solid modern gun like a RRH or RBH.
I also use H4227 but I don't get that much more in velocity. The case is really not designed for high pressure loads and can separate/rupture. Some people try to pump them up to 44 mag levels but the case isn't made for that. Plus, if you do go that route, you want to make sure it's in a good solid modern gun like a RRH or RBH.