I really like Longshot for velocity/accuracy in my 40. I've also tried blue dot, unique, power pistol, HS-6, autocomp. Haven't found a bad powder yet. For sheer velocity with accuracy, Longshot has been the best performer for me, with Power Pistol coming in a close second. HS-6, AutoComp have both been great for accuracy and std velocity. Blue Dot was erratic, and I am not a fan.
There are many online sources of data: Hodgdon's site, Alliant's, Real Guns.com to name a few more.
Never shot them as they have been hard to find, but Speer Gold Dot 180's have a great rep. I like 180 XTP, and get 1160 with 7.8gr Longshot out of a 5" XD. It is accurate and powerful enough to hunt with. I installed a heavier aftermarket spring to keep from battering the frame, and I always load to the max col of 1.135" regardless of what the manuals use. The only time I'd seat deeper is if there were problems with feeding.
Last edited by HuntnShoot; 11/01/13.
