I have liked Unique for mid-range loads, 800-X for faster loads with the Lyman 410429. I've shot my fair share of H110 with this bullet too, but I prefer the flake powders mentioned. HS-6 is another powder that I'm starting to like more and more in pistol cartridges; that's another one to consider though I haven't run any in my 41.

Sometimes, the air you 'let in'matters less than the air you 'let out'.