The RMR/FX/IA slug, in .30, shoots the most accurately in my Paradigm, so I use them, but I would like to find something that shoots better. They are sooo dirty and foul my bore within 30 shots, and my bore is very polished. Every time I fill my gun I pull a patch 2-3 times through the barrel to keep the accuracy up, which is exceptional.Interesting, the impulse shot very well and I think I can get them dialed in better, I was quite surprised with the groups I shot last night with all three slugs, with just getting them tuned, need to spend more time with them to get tighter groups