Should have no problem with any of those. H4350 would be the only marginal powder for those speeds, maybe a bit too fast burning. I really want to try all of the others you mentioned, but haven’t been able to get my hands on any.Ok. My barrel is on the way. I should be testing by May. I have RL23/26. H4831sc and H4350. Thinking the RL23/26 will be the key powders. I'll be happy to get accuracy at 3150