Can’t say I’ve heard about Alliant’s ball powders but I have been experimenting with Reloder 23 and 26 with A-Frames in my 338 Winchester. Both powders are getting me over 2850 with 250 A-Frames. Plenty of pressure for sure but I don’t think I would be afraid to push them a little harder if I wanted to. I’m getting nice 1-inch size groups with Reloder 23 at just under 2800 and I’m going to stick with that load for hunting this fall.
