I've been busy punishing myself with these 770 grain slugs, and hopefully I can have some real numbers up later on the results.
This week I have a special project, a bit of a contradictory. I want to load a full bore round ball (about 1 3/8 oz), but keep recoil down. As low velocity as possible is good, 800-1000 fps is the goal. No load data exists for low recoil 1 3/8 oz loads, for good reason. I'm considering using a faster powder, like universal, but I'm hoping to get away with a reduced load of either hs-6 or 800x. I'm leaning to hs-6, which seems to have limited 1 3/8 oz data, and hopefully will still have adequate pressure to reduce to the levels I want. Has anyone else tried to download to subsonic levels like this?