I shoot USPSA (IPSC) and though the 50 yard targets are becoming rare, I'd like to know that the powder I use in my .45 ACP reloads will make those loads as accurate as reasonably possible in case a 50 yard stage pops up. (accuracy is like money: you can never have too much).
Bullet I use is a Zero brand, 230 grain RN FMJ. I use Federal Large Pistol Primers. 1.260" OAL.
Vihta Vouri N-310
regular Clays from Hodgdon
Winchester 231 or HP 38
Solo 1000 (if there is safe data out there. I use it for skeet).
Accurate No. 2 improved
What others should this list include? Which powder, in your experience, will yeild the best accuracy?