Forster ultra micrometer seating die problems

Discussion in 'Reloading' started by GW Hunter, Aug 10, 2018.

  1. GW Hunter

    GW Hunter Well-Known Member

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    Purchased one of these recently and thought I was in heaven. That is until I found out that using it on a compressed load flares the seating stem, which causes it to bind up in the sliding sleeve. I just sent it back to Forster for the second time to get it repaired. Safe to say, I won't be using this much since most of my loads are compressed for that caliber. Does anyone know of other micrometer dies that can handle the pressure of seating over a compressed load? Any opinions are appreciated...
     
  2. GW Hunter

    GW Hunter Well-Known Member

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    I guess I should say it for a 7mm Weatherby magnum...
     
  3. kiwikid

    kiwikid Well-Known Member

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    Redding state in their instructions not to use their micrometer seating dies with compressed loads for the same reason you have found with the Forster dies. The RCBS micrometer seating dies appear to work in a different fashion so maybe it could be worth giving them a call.
     
  4. dok7mm

    dok7mm Well-Known Member

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    None of the micrometer seaters are recommended for heavy compression. I would try to find a powder with a better fill percentage. I suppose the Weatherby already has a generous freebore, so I would suggest a different powder. With all the powders we now have, I'm sure you find one that will work. OR, you can buy a dozen seater stems. Only other thing I can think of is a Wilson style seater.
     
  5. GW Hunter

    GW Hunter Well-Known Member

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    Yea... not many options. Tough to give up on as load that shoots <3/4". Guess i'll just have to seat the old fashioned way with that one.
     
  6. Gord0

    Gord0 Well-Known Member

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    I had the same problem with mine, only my load wasn't compressed. Brass was annealed, very little seating pressure. It actually cracked the seating stem in mine twice! I did the repair myself the last time by bedding the stem to the bullet I was shooting.

    You could also start the seating with the Forster and finish with another.
     
  7. waltercrouse

    waltercrouse Well-Known Member

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  8. waltercrouse

    waltercrouse Well-Known Member

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    I had problems with the seating die crushing the tip of pointed bullets , such as Berger and Barnes. I had to recut the angle on the seating stem. And had no more. Problems the tips being crushed
     
  9. Lonewolf74

    Lonewolf74 Well-Known Member

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    I use all Forster dies but I don't have the micrometer, just the regular seater die but I believe it works the same way and has the same seating stem. I haven't had any issues seating compressed loads.
     
  10. Mikecr

    Mikecr Well-Known Member

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  11. Clark

    Clark Well-Known Member

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    In 2006 I had bullets sticking in the Forster seater stem.
    They made the cut and then deburred it.
    But they did not de burr their deburr.
    I polished it off with steel wool.


    Since then I have been told the best method is to buy a seating stem for each bullet model and glass bed the stem's concave surface to fit the bullet tip.

    But I have not had any trouble lately and I now own ~21 Forster seater dies.
     

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    Last edited: Aug 16, 2018
  12. cape cove

    cape cove Well-Known Member

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    I have a standard Forster benchrest seating die for my 7mm Wea mag and have never had any problems. Some of the loads were compressed,but only slightly. I have never been a fan of heavy compressed loads. What is the load you are using.