Since I've seen what Rambo can do by setting back a 10/22 barrel.
(Inch an a half rifle will now shoot an occasional high .2 inch group.)
I'm going to beg him to rechamber two barrels from factory rifles
that were much tighter grouping than the Ruger. The Remington 597
barrel has a threaded barrel to which a collar or flange attaches.
This flange is locktited to the barrel threads and attached to the
receiver with two allen screws. Receiver is thin and over torquing
the wedged mounting arrangement will break the receiver. Or so I've
read. Shouldn't be too bad. Barrel vise, heat the flange with a heat gun,
unscrew the flange. Got a brand new PTG Match reamer, looser than
the LR Match but tighter than the Bentz, if Rambo thinks it will work.
Marlin 989 (predecessor to the 795) is right on the edge of being great.
Pinned barrel so it should be fairly easy. Rambo once said that he was
afraid of cracking the receiver. No worries, I've got two Model 60's for
donors if needed. If I can convince Rambo to take these on for winter
projects I'll post results, or better yet, if they shoot as well as expected
readers can see the results on Pine Belt match reports next year.