My Super Blackhawk and my Dan Wesson both like 21.0 grains of 2400 or 19.5 grains of AA#9.
I've also had good luck with 14.0 grains of 800x of all things. That one is about 50 fps slower than the other two but it was very accurate.
I've also had good luck with 14.0 grains of 800x of all things. That one is about 50 fps slower than the other two but it was very accurate.