What kind of groups are you getting with the 68 gr Barts bullets. I have a ton of those. If you don't mind telling me, what powder and load are you using? Do you know the velocity you are getting?I'm new to the 6br game, but I'm shooting Bart's 68g bullets right now. I started with Hornady's 58gr bullets which it seem to like, but that was all I had available when I got the rig together and ready for the first range trip. I've got a 24" Shilen 8 twist, bullets make it to the target at 200yds so far. LOL Using H335 powder right now.