Hey, Dan -- Since no one else wants to 'fess up, I'll do it. I've used Triple 7 with my .40 and .45 percussion "carbines," and had good luck with it. Usually could get half-inch or 3/4ths-inch groups at 25 yards with it (barrels are 21 inches) over a rest. Not wonderful, but, hey, I ain't much of a sharpshooter anyways. I switched to "real" black powder after realizing that all the old hands on this forum turn up their noses at the synthetic stuff. I find the accuracy about the same for both. The good thing, though, is that while I was paying $25-plus per pound of Triple 7 purchased in the only black powder shop I can find in Tucson (pop. 1 million), the nice folks on this forum steered me to the mail order suppliers who are kind enough to sell me a pound of the real stuff for around $13~! Thanks, guys. p.s. I found the cleanup about the same for Triple 7 as I do for the real stuff, too. - paul