Screwbolts recipe is in the group buy results section. And I saw it somewhere else. 21.5 grains of 844 I think. (22 NATO thread) I had better results with the sandstrom 9a product. I tried 27a first, and I would get leading. The 9 a is much tougher. I think it is a commercial grade product. I just put it in a big plastic bowl with a lid and shook it. Then cured it in my toaster oven. They stressed it needed to be absolutely dry before baking. I usually baked it a day or two after I coated the bullets. I have been able to push bullets coated with the hi-tek faster without leading. But the sandstrom stuff works too. The hi-tek product seems much cleaner in the weapon. My 6" para p18 had black gunk in every nook and cranny the last time I cleaned it. Switching over to the hi-tek , carbon does not seem to build up as fast. Believe it or not , my rifle bores had the most carbon build up with powder coating. Your results may vary.