I'm mulling over powders to drive moderate 45C Ruger-only loads with 300 grain hard cast (18 BHN) bullets. H110/W296 gives hotter loads than I want. With HS-6 I'm getting around 1050+ fps out of a 5.5" Blackhawk. I wouldn't mind a small increment over that, though mostly for my Henry rather than the Blackhawk. Some other concerns are temperature sensitivity (on a cold day last winter my HS-6 loads felt pretty wimpy), position sensitivity, clean-burning, etc.
I've tried a few other powders, and mused about a half dozen powders between HS-6 and AA#9 on the burn-rate chart, but I thought I'd ask what are the pros and cons of the powders you know about for an application like this?
I've tried a few other powders, and mused about a half dozen powders between HS-6 and AA#9 on the burn-rate chart, but I thought I'd ask what are the pros and cons of the powders you know about for an application like this?