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Factory crimp die ?

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  • #16
    eaglemike
    CGN/CGSSA Contributor - Lifetime
    CGN Contributor - Lifetime
    • Jan 2008
    • 3947

    Lots of interesting info in this thread.

    First of all, you can seat and crimp with the same die - but it will not be as good as separate seating and crimping operations. This doesn't mean you can't load decent shooting ammunition without a taper crimp die, but the separate die setup is better.

    Sometimes the Lee FCD is a pretty neat tool. It must be used properly as noted above. Some of the Dillon dies used to have a huge lead on their .38 super sizing dies. I also saw some 9mm and .40 like this. The Lee FCD's I saw had a shorter lead, and solved a few issues. ETC: BTW, I've seen a few posts on some of the various reloading or bullet forums, and I wondering how some of the information is presented as accurate... Paying close (really close) attention to stuff usually works pretty well. Logic helps too.

    I have more than a bit of experience with both shooting and manufacturing reloading equipment. I worked at Star Machine Works, and these guys were in business long before Dillon was making reloading equipment ( I know they were making stuff before WWII). I used to sit with one of designers of the Star at lunchtime and pick his brain. He also designed the cast bullet lubricator/sizer currently produced by Magma. He died several years ago, the other partner died about 3 or 4 years ago.
    Last edited by eaglemike; 07-08-2012, 4:21 PM.
    There are some people that it's just not worth engaging.

    It's a muzzle BRAKE, not a muzzle break. Or is your muzzle tired?

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    • #17
      mls204
      Senior Member
      • Jan 2011
      • 836

      I use the Lee FCD on 45acp and it works great. I seat and crimp separately with 9mm and that works great too. What I do not like is seating and crimping in the same die. Sure, it saves a station but also can cause issues because what you are essentially doing is crimping the case mouth as the bullet is being seated so that by the time your bullet is seated to the depth you've dialed in, the case mouth is also being crimped to the max you've set it to. Think of it as walking through a door that is closing. This can be tricky to get right, as well as consistently apply.

      I much prefer to seat the bullet then apply a light crimp, whether using the Lee FCD or a taper crimp die.

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      • #18
        CalTeacher
        Senior Member
        • Oct 2010
        • 828

        It really isn't that difficult to seat/crimp in the same station. Just sayin'...

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