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Thread: What causes this

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  1. #1
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    What causes this

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    Man it pisses me off

  2. #2
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    happen when your seating the projectile?
    Maybe not a big enough chamfer on case mouth?

  3. #3
    Almost literate. veitnamcam's Avatar
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    Seating die set too low or brass needs trimming.
    Trim all brass to same length put one in shell holder put ram right up. Wind die down till it touches neck and wind back up half a turn. Lock it and adjust seating depth from there.

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  4. #4
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    could be

    looks like hydraulic damage

    ie too much lube is being pushed into the shoulder of the die and hydraulically damaging the case shoulder.
    shooting .17 ackley hornet so size dos'nt matter

  5. #5
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    Quote Originally Posted by sakkaranz View Post
    looks like hydraulic damage

    ie too much lube is being pushed into the shoulder of the die and hydraulically damaging the case shoulder.
    If this was the case wouldn't that happen before he seating bullets? Photo Looks like this is occuring while bullet seating?
    Hunting is not a hobby.....its an addiction

  6. #6
    Member Bryan's Avatar
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    Quote Originally Posted by veitnamcam View Post
    Seating die set too low or brass needs trimming.
    Trim all brass to same length put one in shell holder put ram right up. Wind die down till it touches neck and wind back up half a turn. Lock it and adjust seating depth from there.
    What VC said, looks like your seating die iis contacting your brass. Surely you must feel the pressure difference when this happens? Is it occuring all the time or only on the odd case? if its the latter it sounds like its probably time to trim your brass.
    Hunting is not a hobby.....its an addiction

  7. #7
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    both cases were once fired untrimmed

    happens when seating projectile, i push alittle too hard right at the end of the stroke and it crumples
    If I seat softly it dosent happen

    so trimming could well be the issue

  8. #8
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    it only happens when i think it needs to go a mm more than it wants to.
    then instead of the stroke continueing differcltly it gets real easy while it crumples

    is it possibel it is caused from excess lube on the outside of the case neck causing that grip?

    it happened on the first case today 243 and mid run of the 280
    only one every now and then

  9. #9
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Bill999 View Post
    it only happens when i think it needs to go a mm more than it wants to.
    then instead of the stroke continueing differcltly it gets real easy while it crumples
    This sounds like the neck touching the crimp part of the die to me as in my other post .

    The die is trying to crimp the case mouth into a canalure on the projectile that isn't there and you are still trying to force the projectile deeper.
    You would have to have massively under size necks to do this. Are you full length sizeing? And if so is the expander in it?
    The fl die sizes down too small then expands it back up on the withdraw stroke.



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  10. #10
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    definitly happens when seating the pill

  11. #11
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    I looked at the photo at first and thought that the red tip had fallen if the left one haha

  12. #12
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    Haha na that's a targex 95gr and a 162 amax

  13. #13
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    Are you doing a VLD chamfer ?

    Are you lubing inside the neck and the projectile?

    How much neck tension are you using ? (Measure neck OD before and after seating)
    A big fast bullet beats a little fast bullet every time

  14. #14
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    i lube inside the of the case when sizing but not the pills

    ill have to load a few more to see neck tension

  15. #15
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    whats a vld chamfer?
    I chamfer my cases before bullet seating

 

 

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