I've just run 180gr Remington's and 240gr Winchester loads through it so far... 240's didn't stablize as well and seemed to want to create flyers high and left...
I reset it this past session for the 180's, and after that group, tweaked the windage a bit left to bring it in line and it's about at 2" high at 50, which should put it right on the money at 100... I'm going to try and get out this weekend for some practice at 100...
I eventually want to get a set of dies for it and work on some handloads... will check on the twist and get back to you on that...