I asked myself a similar question, and my answer was:
The barrel is a Broughton 5C, 1:9 twist, throated for 103gn Hammer Hunter bullets. Should be good for anything up to mulies. It came back from Rifle, Colorado, just a few days ago, so I haven't shot it yet, but I am pretty sure it is going to shoot great.
Iām close to that, just thinking maybe 240 Roy, 26ā barrel, 1-8ā twist and running the 95 gr Barnes LRX copper solid at about 3500 fps. I figure after 200 yards it turns into a .243
What profile barrel is that and did you do anything else to get it down under 6#??