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Minimum IMR 4064 in .303 British?

Discussion in 'Handloading and Reloading' started by Jenrick, Jan 30, 2013.

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  1. Jenrick

    Jenrick Member

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    The Hodgdon Online Reloading center only lists a maximum load of 44.7 for 150gr bullets, and 41.1 for 180 gr. I'm trying to work up a load for 174gr BTHP's and I'd like the lowest starting point I can get. Does anyone have data from another manual for this?

    -Jenrick
     
  2. Jim Watson

    Jim Watson Member

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    How strange, they show starting loads with other powders but not 4064.
    I'd make the traditional 10% reduction and shoot it with 37-38 grains.
     
  3. mmay1

    mmay1 Member

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    The Hornady 8th edition lists a starting load of 32.8 g. of IMR 4064 with the 150 g. bullet (41.5 max) and a starting load of 31.4 g with a 174 g. bullet (max 39.3). Thde rifle used for these loads is an Enfield #4 Mark 2, 25.25" barrel.
     
  4. Jenrick

    Jenrick Member

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    Interesting. I love how different manufactures come up with different max loadings. In this case almost a grain difference at the heavy end and over THREE grains different for the 150s.

    Anyway, I put together a batch going from 36 to 40.5 in .5 grain increments. I'll keep an eye on pressure signs as I get closer to 39.

    Thanks!

    -Jenrick
     
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