Per the 1st post, this is for my Ruger No.1V with a factory 24" barrel. Don't think I will be winning any F/TR matches with this rifle. I do want to be able to shoot 68-69gr bullets in this rifle at our all-off-hand 100/150/200m gong match. Looks like it would be good with 0.100-0.120" freebore.
68s and 69s do just fine at 2.260. Even conventional 75s and 77s. Lengthen the throat for 80s and up; or 75vlds. I'd use a unithroater and go slow based on the bullet and COL that you want.