Bronco, just ask Carlos. He posted a review years ago with chrono data and targets on the "other" forum.

I would be far more inclined to take his word about its quality. Just like all APP made powders it does appear to ignite very easily. Alliant does not list the ignition temps for it in the MSDS.

If i had a percussion rifle i would surely give it a try if you want something cleaner than real bp.