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Thread: Primers not seating correctly in Winchester cases

  1. #1

    Primers not seating correctly in Winchester cases

    Until today I have only used Remington cases with which I didn't have a single problem with federal primers. Started using some Winchester cases today all fully prepared and not one primer seated correctly all were sitting proud and exerting enough pressure to get the primers in deep enough resulted in deformed primers.

  2. #2
    Use a primer pocket uniformer, & things should settle in OK.
    (The Unspeakable In Pursuit Of The Uneatable.) " If I can help, I will help!." Former S.A.C.S. member!

  3. #3
    In my ignorance I would have assumed that once used and properly cleaned cases should already be the right depth. I thought they would only need a uniformer once carbon had been allowed to build up but we live and learn.

  4. #4
    Try a different brand of primer, some primers are incompatible with certain cases. They wouldn't happen to be Muron primers by chance?
    It's the calibre of the shooter that counts not the calibre of the rifle.

  5. #5
    Federal small rifle and had absolutely no problems with the previous 120 Remington cases.

  6. #6
    Think I have found the cause of the problem, it looks like they have a military type crimp ring around the pockets which is surprising for Winchester factory ammo.

  7. #7
    Quote Originally Posted by chrisbaker42 View Post
    Think I have found the cause of the problem, it looks like they have a military type crimp ring around the pockets which is surprising for Winchester factory ammo.
    Can you post some pictures of the pockets for us?

  8. #8
    The uniformer should deal with that.
    (The Unspeakable In Pursuit Of The Uneatable.) " If I can help, I will help!." Former S.A.C.S. member!

  9. #9
    Quote Originally Posted by finnbear270 View Post
    The uniformer should deal with that.
    Looks like I'll be ordering one.

  10. #10
    My mistake they are federal cases not winchester
    Attached Thumbnails Attached Thumbnails WP_20160929_21_14_40_Pro.jpg  

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