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10mm reloading

Discussion in 'Ammunition & Reloading' started by james2562, Apr 16, 2012.

  1. james2562

    james2562 Kent Member

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    I recently purchased a 10mm pistol. I was looking for dies and came across the Lyman 4 die set (Sizing Die, Neck Expanding M-Die, Bullet Seating Die, and Taper Crimp Die). For my 9mm which is what I have been reloading i have a three die set (Sizer Die with Decapping Unit, Expander Die, and a Seater Die for seating and crimping the bullet).

    I am a little apprehensive about reloading a high power round. My question is: would yall recommend the 4th die for 10mm rounds or is a three die setup sufficient?
     
  2. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    I have not reloaded 10mm so can not speak to that. I do load .50 AE with a 3 die set. I will say the only handgun dies I use now are the Hornady TiN dies. I have replaced all my carbide dies with them. They run so much smoother.
     
  3. humdrum

    humdrum Lakewood Active Member

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    For reloading 40sw I've always used the taper crimp. Beings I'm not familiar with the Lyman 4 die set I would use the taper crimp die and use it as designed. Many of the 3 die sets are actually a roll-crimp which would not suffice with jacketed bullets. So set the seater for final-depth then crimp afterward. As far as loading the higher-pressure 10mm (as compared to the 40sw) start low and work the load up using a current load manual and the proper recipe for your bullet wieght. Good luck!
     
  4. deadshot2

    deadshot2 NW Quadrant WA State Well-Known Member

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    You already have the essential dies. If you want to crimp as a separate process, which I highly recommend due to the more consistent results, just get a Lee Factory Crimp Die. Not expensive and it does a fantastic job. Easier to adjust than a combined seat/crimp process. The Lee FCD isn't as sensitive to varying case lengths either.
     
  5. elsie

    elsie Way over there on the left Well-Known Member

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    I use a 3 die RCBS setup for my 10mm. I don't normally run into any problems though I do understand the issues of seating while crimping.

    One thing that you might run into with a separate crimping die is if you are running a compressed powder load. That can actually push the bullet back up before you crimp on the 4th die.


    elsie
     
  6. deadshot2

    deadshot2 NW Quadrant WA State Well-Known Member

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    If that happens one should reconsider the powder they're using. When it pushes back many consider that too much. Consider a higher energy powder rather than trying to stuff more in the case.