Well, I'm finally getting ready to, "bite the bullet" and actually start working up a load for .45 acp. I have a Springfield Armory XDM 45 (full-sized w/ 4.5" barrel) and my wife and I each have Springfield Armory XDS 45's with, (I think) 3.3" barrels. I'll be using X-treme 230 gn RN FMJ bullets, & once-fired (by us) Federal brass. I have 4 powders on hand: Bullseye, Unique, Titegroup and HP-38. I was leaning towards trying the Bullseye. Of the four powders I believe any of them will work well with .45 acp. Any recommendations or "favorites" among you guys, and why? Thanks.