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IMR 4198 and 308 Win

Discussion in 'Handloading and Reloading' started by rduckwor, Sep 1, 2011.

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  1. rduckwor

    rduckwor Member

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    Considering working up a load with this powder for 308. Interesting that I haven't found any recipes on line at the Winchester site or other places. Is the burn rate too fast for heavier cartridges? Advice? Unsafe?

    Thanks,

    RMD
     
  2. JDGray

    JDGray Member

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    I find data up to 150gr pills in my Lee Second Edition.
     
  3. MEHavey

    MEHavey Member

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    It's not unsafe, just not very efficient since it builds up pressure too fast to really use enough powder to get things going in normal-length barrels. (For that very reason, however, it is useful for SOCOM-like carbines.)

    Case in point:

    Using a standard 24" barrel, a 150-FMJ and a 55,000psi pressure limit, RL-17 gives you a full case, decent burn, and 2,900fps

    Using IMR4198 you can only get 2,750fps before busting that pressure limit.
     
  4. ArchAngelCD

    ArchAngelCD Member

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    When you can't find load data for a caliber/powder combination especially from the powder manufacturer there's usually a very good reason. It's only dangerous if you ignore the pressure limits and load too "hot" for the caliber.
     
  5. 257roberts

    257roberts Member

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    There is load data for it on hodgdon's website

    http://data.hodgdon.com/cartridge_load.asp

    speer reloading manual 14 has a few loads for it in 308

    good for carbines or light bullets there are much better powder choices for heaver bullets IMHO. I use it with 110g V-Max
     
  6. rduckwor

    rduckwor Member

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    Yes, I found the data for the 110Gr Barnes there, but was curious as to why no heavier projectiles were listed.

    As for my reloading books, I will check the Speer. Forgot I had it in the bench out in the garage.

    Thanks all,

    RMD
     
  7. Cherokee

    Cherokee Member

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    IMO 4198 is not for the 308. The powder is too fast. It can be used but not efficiently
     
  8. Kevin Rohrer

    Kevin Rohrer Member

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    The exception being w/ a short barrel and light bullets. I am using it w/ my 20" barreled Scout and 110gr. V-max for coyotes. Am getting close to 3000fps.
     
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