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  1. Rubicon Precision

    Rural road, high speed, need info.

    I wish people would speed on the rural roads around here. It's all 55mph, and I'm always stuck behind someone hauling horses at 21.2 mph and refusing to use turnouts....
  2. Rubicon Precision

    Prefit Barrel Won't Screw onto Action

    On a brand new, never installed barrel, can I ask what you feel the difference would be to take an additional .002”-.005” of thread pitch off in the original set-up vs a re-setup? If your first set-up was good, there should be absolutely no difference.
  3. Rubicon Precision

    Prefit Barrel Won't Screw onto Action

    I’d say you’re being too picky. If you don’t trust the builder to re-setup their work in the lathe, you probably shouldn’t have trusted them the first time.
  4. Rubicon Precision

    Prefit Barrel Won't Screw onto Action

    Yep, missed a zero, crashed the machine! There’s still a lot of people out there that want a custom fit, and as long as they know there’s no guarantee of it interchanging with another action, there’s really nothing wrong with it. But a pre-fit needs to be in spec, as does the action.
  5. Rubicon Precision

    Prefit Barrel Won't Screw onto Action

    Pretty much everyone did until the "modern" class of actions came on the market and pre-fits became a thing. There's a potential clearance of nearly .009" between a 1.0625"-16 3A and 3B thread pitch. Some people that know they won't be moving barrels between actions still like a "custom" thread...
  6. Rubicon Precision

    Gunsmithing Sand blasting

    Wooden golf tee.
  7. Rubicon Precision

    Gunsmithing Threading and chambering

    Again, the reamer absolutely can be used as a center. And in reality, although technically not always correct, it is pretty much a given that "working between centers" means working over the bed.
  8. Rubicon Precision

    Gunsmithing Threading and chambering

    It IS straight forward lathe work, don’t let the internet fool you.
  9. Rubicon Precision

    1:8" twist in a .308 Win. short barreled rifle - will it work?

    I think many missed the first line in the OP "I want to buy a hunting rifle in .308 Winchester which will be shot both, supressed and unsupressed." He is not looking for the ultimate F-Class or BR rifle. It is an off the shelf hunting rifle to be used suppressed and unsuppressed. An 1:8 twist...
  10. Rubicon Precision

    Gunsmithing Threading and chambering

    ^ Pretty much what he said. I doubt any shooter could get behind several identically built rifles other than chambering method used, and pick out which was which by looking at the target. Bores on premium rifle barrels are far straighter than the internet would lead one to believe. Many...
  11. Rubicon Precision

    Gunsmithing Threading and chambering

    Are you talking about the tapered caliber specific rods, or the long rod held in a chuck at one end and a bushing in the bore at the other? I won't go into the method I currently use since it is machine specific, and honestly, not very practical for most. I do recommend people be cautions about...
  12. Rubicon Precision

    Gunsmithing Threading and chambering

    But you can ream a chamber with no external support at the breech end.
  13. Rubicon Precision

    Gunsmithing Threading and chambering

    I don't personally use that method, but I don't really see any faults with it (I may have argued otherwise years ago, but I've gained much experience since then).
  14. Rubicon Precision

    Gunsmithing Threading and chambering

    I think we all know what we mean by "between centers". One end either in a center and driven by a dog or in a chuck and the other end outside the headstock.
  15. Rubicon Precision

    Gunsmithing Threading and chambering

    What are the faults with it?
  16. Rubicon Precision

    Gunsmithing Threading and chambering

    To do it "between centers" without a floating reamer holder, you hold the reamer rigid and float the barrel instead. Relieve the steady rest a bit so the barrel can do what it needs to do, but is close enough to catch it when you pull out the reamer.
  17. Rubicon Precision

    Gunsmithing Threading and chambering

    I don't personally do it this way, but plenty of people do, and do so successfully.
  18. Rubicon Precision

    Gunsmithing Threading and chambering

    The reamer IS the center.
  19. Rubicon Precision

    Suppressors 30 cal Suppressed Bolt Build

    9 twist 308. Run any standard pet load for supersonic and a 220 grain/Trail Boss sub load for quiet close range stuff.
  20. Rubicon Precision

    Gunsmithing Threading and chambering

    Pro tip. Many people are probably bending barrels when working between spiders to try to get a "straight section" of bore for the chamber. A relatively small diameter bar being jacked around between two points about 20" apart is a recipe for a false sense of security. Wonder if anyone has gone...
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