garygruber

I'm not sure why people feel so religiously about using Titegroup. I've used slower powders for over 20 years with my XD/XDM pistols in competition and am very happy with the results. I use VihtaVouri 350 exclusively. If I can't find that I use AA#5. slower powders give a fuller case, almost no shifting that can cause erratic ignition, and the 0.1-0.2 throw variation on my Dillon 650 has much less effect shot to shot than working with a smaller quantity faster powder. The recoil impulse changes, especially with heavier bullets. Shooting a 147g jacketed with VV350 is a joy.

Converting from 40 to 9 is not recommended unless you are willing to swap out extractors also. The 9mm extractor has a very different profile than the 40, making it nearly impossible to get reliable extraction. Been there, done that. Springer Precision makes an aftermarket extractor that will work out of the box for 9mm. It does require a special tool to get swap extractors, and complete disassembly of the slide to accomplish this. If you want to use Springer's extractor in a 40, you will have to reshape its contour.