The options are huge I suppose. I've tried several including Blue Dot and even Bullseye. The bulls were way low powered but that was the point when I made them. I wasn't trying to make an accurate round, they were for fun and experimentation. Now if you want best accuracy listen to the other guys, but if it's just for fun and saving $ in powder then you have tons of options. RE7 was the best I tried for making close to full power on the cheap. Just my 2cents