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  1. Rubicon Precision

    Gunsmithing Gunsmithing Lathe

    Barrel fitting/chambering is not very demanding. You do not “need” a heavy or even a super accurate lathe to turn out extremely accurate rifles. Rifles built on my 1200 lb Chinese manual lathe were just as accurate as one’s built now on my 6000 lb turning center. I get far better surface...
  2. Rubicon Precision

    Gunsmithing Thinking the Smith screwed my barrrel

    This day in age, and especially usage typical with this site, threading to a spec makes much more sense than threading to a single muzzle device. Two weeks from now when the next latest and greatest muzzle brake or suppressor hits the market, you're going to be bummed to find it wont fit your...
  3. Rubicon Precision

    Gunsmithing Bore scope

    I’ll flat out admit to being a tool whore. It doesn’t matter if it’s in the shop or kitchen, I want the best. That said, when the Lyman first came out, it was a cheap enough gamble. I picked one up with the intention of seeing if I could cut it down to 5”-6” to use as an in-machine inspection...
  4. Rubicon Precision

    Gunsmithing Setting back a barrel?

    To answer the original question, in my opinion it is not worth it. I charge the same amount to set a barrel back as a fitting a new blank because it is the same set-up and same amount of work. It is always a gamble if you will regain anything, and if so, how much life will it add? Also, now your...
  5. Rubicon Precision

    Gunsmithing Seized Barrel Threads: The Fix

    No matter how right you do things, sometimes they go wrong. No matter what happens, making the wrongs right in the customer’s eyes is extremely important.
  6. Rubicon Precision

    Gunsmithing Seized Barrel Threads: The Fix

    Yep.
  7. Rubicon Precision

    Gunsmithing Seized Barrel Threads: The Fix

    Inspired by the "What Were They Thinking" thread. This is Robert. Don’t be like Robert... This is a personal project so at least I’m not buying a customer a barrel. This barrel is 1.375 for 5” then tapering to 1.010” at 32” and I have a second one. Losing 1-1/4” on the chamber end isn’t really...
  8. Rubicon Precision

    Gunsmithing Mill question

    I’d agree with those saying get a Bridgeport. If you have the real estate, a knee mill is so handy. 95% or the time, mine is used as a base for my barrel vise. BUT, when I really need it, I REALLY need it. A knee mill is so versatile, many things would be hard, if not impossible to do with a...
  9. Rubicon Precision

    Gunsmithing LRI Tenon thread pitch question

    How much does your manual lathe weigh? How rigid is your toolpost/compound/carriage/bed? What RPM are you comfortable threading at? I do use the same inserts in the turning center that I used on my manual for ever, but the turning center has several advantages, mainly rigidity. Also, not...
  10. Rubicon Precision

    Gunsmithing Action Wrench for Bighorn TL3 Rem SA

    The rear entry wrenches for 700s, such as the one from Defiance will work if you pop out the ejector on the TL-3.
  11. Rubicon Precision

    Gunsmithing Setting headspace; how tight is too tight?

    If the bolt drops on the go gauge and some brass doesn’t fit due to length, either the brass is out of spec or the gauge is. Same thing if you can’t resize brass short enough. Either the die is out of spec or the HS gauge is.
  12. Rubicon Precision

    Gunsmithing Pacific Tool and Gauge

    I don’t believe I saw where Chad said he makes the receiver bore larger. FWIW, probably the most accurate rifle I’ve built for myself was a 700 with .007-.008” bolt body/receiver bore clearance. I’m not convinced a super tight bolt fit is needed or even beneficial for a...
  13. Rubicon Precision

    Gunsmithing So A #8-40 Thread Tap Is Apparently Rare As Hens Teeth.

    Around the house, probably pretty rare. In the gun world, 8-40 is pretty common. Order one from Brownells.
  14. Rubicon Precision

    Gunsmithing Muzzle thread length

    My standard 5/8-24 muzzle is .600” long but I’ve done up to .900” long per a customer request.
  15. Rubicon Precision

    Gunsmithing Setting headspace; how tight is too tight?

    The bottom line is if the bolt drops on a go gauge, any in spec ammo will fit. Edit: I should say any in spec brass will fit.
  16. Rubicon Precision

    Gunsmithing Reading reamer print

    It doesn’t have any parallel freebore. True, your ogive may not be right at the case mouth, but this is zero frerbore.
  17. Rubicon Precision

    Gunsmithing Reading reamer print

    That is what 0 freebore looks like.
  18. Rubicon Precision

    Gunsmithing CNC Muzzle Threading

    Think "set-tru".
  19. Rubicon Precision

    Gunsmithing CNC Muzzle Threading

    The tool after the threads is creating a blunt start/Higbee thread. The number of roughing passes is a result of safe compromise. I found that no matter how well you are holding the tapered barrel, you can push it back into the chuck with a tool nose radius and depth of cut normally used to...
  20. Rubicon Precision

    Gunsmithing CNC Muzzle Threading

    Glad you liked it. Never know what’s going to come on in the Rubicon shop radio...
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