I use Saeco #924. It is 124 grain SWC with gas check. I use Accurate #9 and sometime #7. I take the barrel out and use it when sizing to get the headspace correct. Headspace on the shoulder just like a rifle. The #9 powder fills the case so that there is no boolit setback. Four inch Sig Or Glock is right at 1400 FPS in my pistols. Accuracy is good for me, but I'm no target shooter. I cast with straight linotype. Your results may vary. Good luck, Rod