Well I really enjoy re-reading the excellent cast article by Harris on this cartridge. The problem I have is I'm shooting it out of a Ruger Mini-30 and not an SKS. I've gone up to 15.5 gr. of 2400 and it still will not cycle the action. He suggests 1 grain more than what cycles the action on an SKS but I'm afraid to go up in charge any more than this. Time to try more quantity of a slower powder I suppose. Anyone have a suggestion of where to start with 3031 or BL-C(2)?