Have a 44 mag rifle with a 22" barrel and a 1:20 twist.
Looking for accurate subsonic loads.
Have tried a few charges of Trailboss, 5.5 is definitely below the crack but accuracy isn't great- about 3" @ 50 yards.
Interestingly enough I put the target on a big cardboard box and then placed another cardboard box about 5 yards behind it. Boolit holes in and out of each were perfectly round so tumbling doesn't seem to be an issue.
I currently have Trailboss and IMR4227 but open to anything.
Thanks, Matt.