Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

spanish 93 rebarreling

Discussion in 'Rifle Country' started by Gunnerboy, Feb 10, 2012.

Thread Status:
Not open for further replies.
  1. Gunnerboy

    Gunnerboy Member

    Joined:
    Jun 20, 2011
    Messages:
    1,131
    Location:
    Over the hills and far away
    i got a spanish 93 thats been bubba'd already so i was thinking of 257 roberts, but this made me think that if the 93s were chambered to 308 and did ok then would it be alright to go ahead and use 257+p in it being that there is only a 3-4000 psi differace in the two rnds, any input is appreciated other than that of another caliber suggestion.
     
  2. Stophel

    Stophel Member

    Joined:
    Dec 13, 2009
    Messages:
    437
    Location:
    Kentucky
    Granted, I'm not that familiar with the use of the caliber (other than reading nothing but praise for it for years), but is there something insufficient about it where you need a "+P" loading?
     
  3. Clipper

    Clipper Member

    Joined:
    Apr 15, 2006
    Messages:
    2,243
    Location:
    Mt. Morris, MI.
    I'd also look into Akley Improving it to reduce bolt thrust. You can still shoot factory Roberts to fireform cases.
     
  4. Slamfire

    Slamfire Member

    Joined:
    Dec 29, 2006
    Messages:
    7,519
    Location:
    Alabama
    The conversion of M93's and M1916's to 308 Win will cause a lot of controversy , especially from owners. This has been hashed out in these threads:

    http://www.thehighroad.org/showthread.php?t=633704&highlight=spanish+mauser

    http://www.thehighroad.org/showthread.php?t=632684&highlight=spanish+mauser

    I would not convert this rifle to a 308 Win. That cartridge operates at higher pressures than the 7mm Mauser ammunition that these rifles originally used.

    There are many other reasons, just look at the all the threads.


    http://www.thehighroad.org/showpost.php?p=6707989&postcount=10

    http://www.thehighroad.org/showthread.php?t=632782

     
  5. Gunnerboy

    Gunnerboy Member

    Joined:
    Jun 20, 2011
    Messages:
    1,131
    Location:
    Over the hills and far away
    I never said i was gonna build it into 308, im looking for 257 roberts to be the next contestant in that action.
     
  6. Slamfire

    Slamfire Member

    Joined:
    Dec 29, 2006
    Messages:
    7,519
    Location:
    Alabama
    Not familiar with the 257 Roberts. You want a cartridge that does not produce more than 40 K psia. At least that is my opinion for these old actions.
     
  7. MachIVshooter

    MachIVshooter Member

    Joined:
    Aug 11, 2005
    Messages:
    14,248
    Location:
    Elbert County, CO
    The Roberts is a 7x57 necked down to .257"

    Standard .257 Roberts i s 45,000 PSI; Industry standard for the old 7x57 to be safely used in the M93 and variants is 46,000 PSI according to Speer #13. The Roberts +P, however, is rated to 50,000 PSI.

    OP-

    Your gun will be fine with the Roberts if you stick to standard pressure load data (and I'd probably stay a little under max just to be safe).

    A shoot an unmodified M-93 7x57 and use mid-level loads, never had a problem.
     
  8. NCsmitty

    NCsmitty Member

    Joined:
    Jun 29, 2008
    Messages:
    5,325
    Location:
    North Carolina
    Good advice, stay within the design limits of the small ring action. The 257 Roberts is an ideal cartridge for the small ring Mausers.


    NCsmitty
     
Thread Status:
Not open for further replies.

Share This Page