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Anyone have or know where to find load data to mimic the .30 M1 Ball load?

Discussion in 'Handloading and Reloading' started by Detritus, May 16, 2020.

  1. Detritus

    Detritus Member

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    Ok, so I have a Garand that I'm just about ready to start reloading for, and two or three boxes 175gr Matchkings. So the thought came to me that, since I have said resource, I thought it would be interesting to look into trying to replicate the load the Garand was initially designed to use.

    So anyone have a good lead on where to find such data? i.e. a load using currently available powder, for a 175gr BTHP at a MV of 2,600fps, and a Garand safe pressure curve?

    the "garand safe" data I have been able to find so far, has a gap where it jumps from 168gr loads to 180gr and the 178/180 data maxes out at 2500fps.

    Note: I also plan to work up an M2 ball equivalent, but have found multiple data sources for that.

    As always TIA for any info and advice you can give.
     
  2. cfullgraf

    cfullgraf Member

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    I use H4895, IMR4895, or Varget with my 150 grain M1 ammunition. H4895 is my favorite but I have an alternate load worked up for IMR4895 should I not be able to find H4895. The two powders are not the same so load data cannot be interchanged.

    The range of safe powders for the Garand is a bit wider but I do not remember the exact powders.

    If I remember correctly, Hornady has a Garand safe section in their manual.

    Also, the following link to Master Po's page has lots of data.

    http://masterpostemple.bravepages.com/M1load.htm

    The web site can be slow to load.
     
  3. Skgreen

    Skgreen Member

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    I apologize as my knowledge of the Garand is all but non-existent.

    Have you reached out to Sierra?

    Their ballisticians have always helped me with load data I couldn't find posted elsewhere.

    https://www.sierrabullets.com/contact/
     
  4. Detritus

    Detritus Member

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    Not yet, I'm still at the "I had an idea, what can I find out without leaving my computer chair" stage (waiting on a call from a service tech....)

    I have found data for 30-06, 175gr SMK, that matches the listed MV of M1 ball, using Varget. But have no idea as of yet if it's "Garand safe"
     
  5. Havok7416
    • Contributing Member

    Havok7416 Member

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    Hornady has a special load section in their manuals (at least starting in their 7th edition going forward) specifically for .308 and .30-06 Service Rifle load data.
     
  6. Laphroaig

    Laphroaig Member

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    Firstoff, I think that Varget is on the slow side of the Garand-safe burn rate spectrum. I've been loading my 168's with it for a decade or more, and haven't bent any op-rods yet. But I still think you need to be mindful not to get carried away, especially when using heavier bullets.

    My Garand with a relatively new Criterion barrel shot 175 SMK's as follows:

    45.5 gr. Varget - 2464 fps
    46.0 gr. Varget - 2492 fps

    If I was going to make a habit of shooting 175's, I think that I would switch to IMR4895.
     
  7. Detritus

    Detritus Member

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    Mine is one of the CMP "Specials" so Criterion barrel as well. and the two powders i'm looking at working with are Varget and IMR4895.

    got some feedback from a relatively local Garand shooter on the Hodgdon 175SMK + Varget load and where he's working (and has been for several years) with the combo, is right in line with Hodgdon's online data. so that's encouraging.
     
  8. Swampman

    Swampman Old Fart

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    Direct from Uncle Sugar via:
    ARMY AMMUNITION DATA SHEETS SMALL CALIBER AMMUNITION FSC 1305
    Screenshot_20200516-153006_Adobe Acrobat.jpg
    I know it's not the exact data you asked for, but it's the same basic bullet and the load was certainly intended for the Garand.
     
  9. ArchAngelCD

    ArchAngelCD Member

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  10. MEHavey

    MEHavey Member

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