Last Summer I was lurking about this forum and noticed somebody mention that a 22-250 packed full of a slow powder like RL-19 gave surprising accuracy though this was at the loss of some velocity. I have a 22-250 so that sounded kind of interesting. The nominal burn rate of RL-19 per QuickLoad is 0.4500 and I’ve got some RL-19. However, I noticed a bottle of IMR7828 SSC sitting next to it and it has a burn rate of 0.3841. If slow is good maybe slower is even better? I tried them both. Believe it or not, the IMR7828 worked out pretty good. With a 53 gr VMAX it put 5 shots into 1.156” at 200 yards while still running a respectable 3,550 fps. That will kill a p-dog. The ballistic efficiency as you might expect totally sucks at 18.8% and only 85.8% of the powder gets burned but… the interesting part is the extreme spread on velocity was 9 fps. I’m thinking that might have some long range potential if I stuck a 75 grain AMAX in front of it. With an ES that low the vertical at longer ranges should be pretty good. Anyone out there got any long range experience with a load this far off the track? If not, how about just a good shooting load for a 1 in 8 twist 22-250 for 600 yard p-dogs?