Thanks Josmund. I have a T/C book that goes with their hawken. Their max loads are hotter then Investarm offers. Thinking that the twist is one in 60 on mine, I thought I was restricted to either RB or short conicals so I have not tried anything heavier. I do not notice any kick with the 240gr Hornady and 80 grains of RS, but this is from a standing position. I won't be shooting anything bigger then whitetail deer, so the 240 gr. should work. I am assuming that the 80 grains of RS is enough to get the Hornady to "upset" and grip the bore. I think I read somewhere that the T7 that you are using is "hotter" then RS. A couple of years ago I bought several bottles of RS from a K-mart that was selling them for under $4 a bottle so I have a supply of that. I guess it will keep OK until each bottle is opened. I didn't notice a "use by ..." notice on them.
I will try measuring the twist again, I just read some good instructions on this forum.