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Loading M885 velocities for a 16" barrel

Discussion in 'Handloading and Reloading' started by Underwhere, Feb 15, 2010.

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  1. Underwhere

    Underwhere Member

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    I have some SS109 I'm loading for a friend.
    Both of us have 16" barrels and I'm having trouble finding the ideal velocity to mimick M885.

    I can find velocities for a 20" barrel, just not 16"

    Anyone happen to know this, or know where I can find it?

    24.6gr of H335 with wolf primer in a RORG case gives me about 2800fps.
     
    Last edited: Feb 15, 2010
  2. rcmodel

    rcmodel Member in memoriam

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    M855 should give you around 3,050-3,100 from a 20" barrel, and around 2,950-3,000 from a 16" weapon.
    Duplicating it is pretty hard to do at safe pressure levels.
    You could probably come closest with Varget powder.

    Personally, I never load that hot.
    I can get better brass & gun life by dropping down a tad from MAX loads.
    With less risk of a tired case ruining my gun & face.

    The steel targets & hedge balls I mostly shoot at can't seem to tell any differance.

    Were I fighting in Iraq, that last 100 -200 FPS might matter.
    Here, it doesn't.

    rc
     
  3. Underwhere

    Underwhere Member

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    Thanks for the advice.

    So do you think that around 2800 or so should be a good upper limit for this?
     
  4. rcmodel

    rcmodel Member in memoriam

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    Your load sounds fine to me.

    It is 0.4 grains below max listed in the Hodgon powder guide with the 63 grain Sierra.

    Better safe then Mil-Spec I think!

    rc
     
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