What is the J Lock on Rem Bolts?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by jasonprox700, Feb 14, 2010.

  1. jasonprox700

    jasonprox700 Well-Known Member

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    I recently aquired a 7mm RUM that has the J Lock bolt. What exactly does this do? Will I gain anything by swapping it out? This gun will be used for a .300 RUM project, so any suggestions would be appreciated.
     
  2. geargrinder

    geargrinder Well-Known Member

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    It's a lock that physically locks the firing pin. It's just another thing to go wrong at the worst moment.

    For about $50 you can replace it with an aftermarket assembly from Callahan, PTG, or others.

    IMO, you'll get better and more consistent primer strikes and shorter lock time if you replace the J-lock.
     

  3. Moman

    Moman Well-Known Member

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