I've never found a powder that can match Longshot in a 40 cal. Those two seem to be made for each other. I can run a 180 at 1150 with Longshot from a 40 and it shoots great. It's also great in a 10mm but 800x will out do it in a 10 if you feel like hand weighing each charge. I wish someone made a powder with the same burn curve as 800x that could meter better than corn flakes.

I used to hand measure and load some 800x in 44 mag loads when I was a broke student because that's what I had found on sale. I could get speeds close to the slow burning mag powers like h110 with about half the charge weight. I'd love a new improved 800x if it would meter but until then I'll stick with Longshot and be86. Power pistol is an awesome mid range load powder for magnums but it is flashy.

Bb