UPDATED INFORMATION:
Check the Q&As...particularly numbers 4, 8 & 9.
If a 209 primer gets 800 FPS velocity out of a relatively short barrel, I guess 10-15 grns of Goex should easily get 1000-1200 FPS out of a long ML barrel.
And hopefully if they're accurate to 30 feet out of a pistol barrel, maybe a long barreld ML will get 50 feet.
I'm going to find somewhere to shoot these this weekend even if I have to just go to the woods where I normally deer hunt.
http://www.gunfighter.com/waxbullets/cr-faq.html#4