Looking 4 a 7mm-300WM tight or turn neck reamer..

Discussion in 'Gunsmithing' started by tresmon, Dec 22, 2010.

  1. tresmon

    tresmon Well-Known Member

    Messages:
    87
    Joined:
    Aug 19, 2008
    Greetings,
    I'm looking for a 7mm-300WM tight/turn neck reamer to ream a new barrel with. You do the reaming or I can. .313"ish ??

    If one does not turn up, I could be persuaded to go 7mmRM turn neck...

    Let me know,
    Tres
     
  2. tresmon

    tresmon Well-Known Member

    Messages:
    87
    Joined:
    Aug 19, 2008
    Any one?
     

  3. fariswm

    fariswm Well-Known Member

    Messages:
    71
    Joined:
    Mar 30, 2008
    Last year I built a wildcat 7mm based on the 300 WM cartridge. But it is not just a 300 WM sized down to 7mm. The shoulder angle is increased 10 degrees and the shoulder is blown our about .003. The neck is also pushed back to allow for a full .284 length neck.

    Shoots very well with velocities comparable to a 7mm STW.

    I have the reamer and while I wouldn't part with it I could be persuaded to loan it out it you are interested.
     
  4. J E Custom

    J E Custom Well-Known Member

    Messages:
    7,313
    Joined:
    Jul 29, 2004
    The 7mm rem mag is almost the ballistic twin to the 7mm/300 win.

    The 300 is a little longer but the neck is shorter than the 7mm RM.

    The 7mm will be easy to find or have made reamers and everything else is
    easy to find for the 7mm RM.

    J E CUSTOM
     
  5. FEENIX

    FEENIX Well-Known Member

    Messages:
    9,806
    Joined:
    Dec 20, 2008