Well, I'm guessing that it probably has barrel blocks for a micrometer type mount set for an old Lyman, Unertl or Fecker. That's not going to work with your V6. You are going to probably want Weaver type bases or a Picatinny rail. You'll need a good gunsmith, but do you want to drill more holes in this vintage piece? Maybe put that V6 on something more modern and shop for an vintage long scope with the right mounts so you have a true period piece?
If you do go modern, Burris signature rings are hard to beat. Nevertheless, mounts directly on the barrel do negatively impact accuracy. This kind of rig is all about nostalgia, so I'd vote for the vintage scope.