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Thread: Tikka M55 223

  1. #1
    Join Date
    Nov 2014
    Posts
    70

    Tikka M55 223

    Good day guys my M55 seems to have a very short firing pin protrusion out of the bolt face Around 40 th [1mm] is that right thanks
    Chris
    Last edited by chris; 08-18-2021 at 02:17 AM.

  2. #2
    Join Date
    Feb 2003
    Location
    Florida Panhandle
    Posts
    684
    The question is, does it reliably ignite your rounds?

    What's the dimple depth on a fired primer compared to other rifles?

  3. #3
    Join Date
    Nov 2014
    Posts
    70
    Quote Originally Posted by TomD View Post
    The question is, does it reliably ignite your rounds?

    What's the dimple depth on a fired primer compared to other rifles?
    The dimple depth Around i0 thou or less So how would that rate
    Tom

  4. #4
    Join Date
    Dec 2006
    Location
    Branchville, NJ
    Posts
    545
    Our ammo equipment test requirements in a Universal Receiver or a bolt action for .223/5.56mm are: 0.030" to 0.039" firing pin protrusion, with an indent in a SAAMI copper of 0.020" to 0.025". Hope this helps.

  5. #5
    Join Date
    Nov 2014
    Posts
    70

    Yes

    Quote Originally Posted by MilGunsmith View Post
    Our ammo equipment test requirements in a Universal Receiver or a bolt action for .223/5.56mm are: 0.030" to 0.039" firing pin protrusion, with an indent in a SAAMI copper of 0.020" to 0.025". Hope this helps.
    Yes it dose thank you
    Chris

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