Yes, IMR 4895. It is very versatile, can be loaded down for light recoil, up for speed, and all seem to group pretty well. To be honest, surplus would probably work just as well, I just don't have experience there.
I did buy some H4895 accidentally in the midst of my hoarding

, but I haven't shot it yet. Probably, again, a great powder, I am waiting for a chance to open the can.