H110 was my favorite for 44 mag. My loads were similar to yours. Felt fine in the Super Blackhawks but a bit violent in my little Uberti 1873 colt replica.240 grain with 24 grains H110 is hard to beat. You want to work up to it, but it is really hard to beat H110 in 44 Mag. I could not even guess how much H110 I have used over the years...used to shoot a lot of .44 Mag. AA#9 is pretty good too, and Lil Gun works admirably too. I was just out shooting my 1894 earlier today. It performs really well with N110 using 180 grain XTP’s, but 240 on top of 24 grains H110 is just sweet. Super Blackhawk likes em too.