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Oal, 9mm. 40 s&w

Discussion in 'Caliber Corner' started by ghr1142, Aug 25, 2012.

  1. ghr1142

    ghr1142

    321
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    May 26, 2011
    Hello to all that " ROLL THEIR OWN" I had a misshap with a box of 9mm WWW from walyworld. I had 1 round that not only jamed my G-26 but blew the mag. out of the pistol along with the but plug. I took it to my local smith (with theblown out brass!) and he told me it could have been caused by bullet setback from the factory or The box was droped to cause this ? The brass just above the ejector ring was in sorry shape. lucky it had no affect on the pistol.had it checked out. anyway can someone give me the total safe OAL of the 9mm. and 40 s&w so I can check each round before loading the mag ? any help or info. would be welcome.
    thank's ghr1142
     
  2. DannyR

    DannyR Moderator Millennium Member

    19,807
    181
    Dec 17, 1998
    Roanoke, Virginia

  3. shotgunred

    shotgunred local trouble maker

    8,782
    997
    Mar 1, 2008
    Washington (the state)
    DO you want max or mining OAL?

    For Glocks a good OAL is 1.125 to 1.135.
     
  4. cowboy1964

    cowboy1964

    19,986
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    Sep 4, 2009
    U.S.A.
    Just get a box that you know has no problems and measure those rounds.
     
  5. fredj338

    fredj338

    21,996
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    Dec 22, 2004
    so.cal.
    There really is no min OAL, it will be powder charge & bullet wt specific. I have reloaded 9mm as short as 1.050" OAL, no issues.
    My rule of thumb for factory ammo & setbacks, once it has setback 0.060", pressures are rising fast. The smaller the case & higher the pressures, the faster that pressure will increase w/ setback. SO measure your factory ammo, discard any that are 0.060" shorter than avg OAL.
     
    Last edited: Aug 25, 2012