I think I already know the answer, but here goes; I have a Gen 3 RPR in 6.5 cm that I would like to rebarrel to a different caliber, but would need a 6.8SPC bolt. Ruger doesn't make the RPR in that flavor, so the question is does anyone have info on a shop that could machine the existing bolt (liablility probably an issue here) to the proper 6.8 specs?
A long time ago, far, far away, it was a popular modification to open up Remington XP100 chambered in in .221 Fireball (0.378) Specs to .308 sized bolt face, (0.473) The XP was a very beefy firearm with an action that was far in excess of what was necessary for the initial build.
Now with the modification necessary to reduce the bolt face considering the extractor and ejector locations, you are looking at a major bolt modification, that may not be possible. It might be possible to modify a .223 RPR if you could find one, but this really begs the question.
WHY?
What does any round using a 6.8 sized case offer that is so different from what the 6.5 already offers?
Your solution is having a shop build you a custom bolt. My solution, if you have to have a 6.8, sell your RPR and purchase a custom action and build from there. The cost of your proposed project, if possible would likly jsut as expensive as selling your rifle and taking those moneys and adding it to a custom build.
Wondering about the XP-100. Initially chambered in .221 Fireball, it was large enough and strong enough to be chambered in rounds as stout and large as the .458 American (a cut down .458 Winchester Magnum)
