I am using Bullseye Gun Powder. 230gr round nose jacketed. Large primmer. Dont want it to weak and dont want it jumping out of my hands LOL. 4.5 grains or 5.1 ?? Got a smoking deal on the powder and the projectiles so this is what I have to work with." Gun..Norc 1911 Gov.45cal" It seems to be accuate and work well with NOINCO ammo "black & white box" Would be nice to get the reloads the same. Thanks