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installing mil-spec primer crimp

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7 comments

  • bpost
    Are you sure it was a crimp and not a de-crimp swage?
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  • 5mmgunguy
    Call Dillion, I don't think they ever made a mil crimping tool. Only tool I have ever seen or heard of is a decrimping tool.
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  • MEMPHISJOE
    Iamaclone 2 posted un topic "223 crimp" how remove a primer crimp, but also how his dillon equipment could "install a mil spec crimp". This lead me to believe I was missing parts, or the press I purchased was a different model.
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  • MEMPHISJOE
    I have gone back an re-read Iamaclones post, I do not believe I have misread it his dillon equipment (he paid $64 for), removes and installes ALL MIL-SPEC CRIMPS. I am very interested in this equipment, a man that spent $3,800.00 (after re-read, it was 3800 not the 3500 originally posted), must know his equipment.
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  • 375H&H
    Aways wondered why they crimp the primers in Mil brass [B)]
    All I do know is that its sucks de-crimping them . Anyway , why do they crimp em [?][:o)][?]
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  • dcs shooters
    The crimp is there so the primer won't back out under the pressure.
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  • Mobuck
    Mostly correct on the logic behind the crimp. Sometimes full auto military arms stretch in the bolt/chamber area due to heat. Wear can also be a factor. This can increase the headspace to the point that a primer could pop out of it's pocket. A loose primer could foul up the mechanism, stopping the gun. It's not likely that sports shooters would even fire a weapon in such a condition or that a stoppage would be life threatening. If this is the case, using reloaded ammo seems unlikely anyway. There might be some class 3 shooters who reload but considering the value of such firearms I would expect them to get better care than a machinegun in the midst of battle. Even if the recreational full auto had a stoppage it wouldn't be a killer.
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