RT, my B-78 just loves the Rem 405 gr JSP bullet which I found when originally shooting factory loads to get brass. I was buying everything I could find in 45-90, to which it was reamed. As I'd rather spend time shooting than cleaning, I've avoided black powder. I started with AA 5744 and got good results, with 1/2", 3-shot, 100 yard groups at 1750 fps. I'm out of 5744 and can't seem to find it locally (I understand it is now quite expensive also). I'm not trying to gain any velocity as this seems plenty enough. However, I don't want to lose this accuracy. I may well try RL 7 or IMR 4198 as both seem highly recommended. Thanks!