Let it be known

Discussion in 'Gunsmithing' started by NesikaChad, Feb 22, 2010.

  1. NesikaChad

    NesikaChad Well-Known Member

    Messages:
    753
    Joined:
    Jan 28, 2007
    . . .that BORDEN actions ROCK!!

    Just barreled my first one and I DIG EM!

    Have a great night.

    C
     
  2. phorwath

    phorwath Well-Known Member

    Messages:
    4,896
    Joined:
    Apr 4, 2005
    A while back Fiftydriver posted that he was liking and using the Jim Borden actions also. He's working on an action of his own design now.
     

  3. FEENIX

    FEENIX Well-Known Member

    Messages:
    9,806
    Joined:
    Dec 20, 2008
    IIRC, Home page (Defiance/Phoenix Machines) is making the action to Kirby's spec.
     
  4. NesikaChad

    NesikaChad Well-Known Member

    Messages:
    753
    Joined:
    Jan 28, 2007
    In 13 years of doing this I've never had an action "hit the number" on the thread pitch diameter on the first pass.

    -That sounds a little strange so I'll explain:

    I use a slant bed CNC turning center for all my barrel work. I use a canned thread cycle called a "G92".

    You direct the tool to approach the part, then it starts cutting threads. The "number" according to the Machinery handbook for a 1.0625X18 thread is .995" for the minor diameter.

    In all cases (this action being the exception) I have to either bump an offset or write an additional "squeaker" pass to get that silky thread fit that I'm after.

    This time I hit it on the first try. Maybe coincidence, I dunno. Don't care either, all I know is its cool when it happens!

    Chamber runout was in tenths, .00012" up at the shoulder and .00017" back in the web area. I can live with that I think!

    Anyways, I like this receiver. Machine work is very clean, good primary extraction, all the tapped holes look good, the bolt is nice and slick (I think it must be surface hardened, either nitrited, or cased maybe) and the overall presentation is spot on. All the edges are finished and edges broken without being overdone. (rare)

    Hats of to Borden. Nice, nice piece.

    Chad

    [​IMG]

    [​IMG]

    [​IMG]
     
    Last edited: Feb 23, 2010
  5. sp6x6

    sp6x6 Well-Known Member

    Messages:
    3,043
    Joined:
    Dec 8, 2009
    I wish I knew, what you forgot:D
     
  6. NesikaChad

    NesikaChad Well-Known Member

    Messages:
    753
    Joined:
    Jan 28, 2007
    Correction on my part:

    I received a warm note from Mr. Borden. I'd commented on the threaded holes as being tapped. He politely informed me they are in fact thread milled. I'd wondered as all the blind holes are finish milled with flat bottoms rather than drill pointed.

    EVEN BETTER!

    Save yer pennies gents and buy one of these buggers, you won't be disappointed.

    Cheers,

    C
     
  7. blacktails

    blacktails Well-Known Member

    Messages:
    50
    Joined:
    Dec 24, 2007
    Chad,

    Which model Borden action are you using and referring to?
     
  8. NesikaChad

    NesikaChad Well-Known Member

    Messages:
    753
    Joined:
    Jan 28, 2007
    It's the model T Timberline Magnum.

    1.350OD, std magnum BF. Hunter port, rem tang.