7mm sherman max

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by elkaholic, Mar 20, 2019.


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  1. elkaholic

    elkaholic Official LRH Sponsor

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    Good eye! Chad put an M16 extractor in the bolt
     
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  2. elkaholic

    elkaholic Official LRH Sponsor

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    I put my 6-24 Sightron SIII on it. IMG_20190611_202056120.jpg
     
  3. S96743

    S96743 Member

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    Thanks Rich. Got my brass today too. Looked like a rifle drs writing!
     
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  4. elkaholic

    elkaholic Official LRH Sponsor

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    Ran the first rounds down the Max today with 6 different powders. I loaded mostly 175 EHs and a few 195 EOLs
    Top speed hit with 175 was with RL26 at 3115' and no pressure issues.
    Tops with the 195 was with N570 at 2969' also no pressure issues.
    With Retumbo, RL23, h1000, and ramshot, around 3050' is doable with the 175-180 class. I only loaded one setting depth for everything and the 4 I grouped all shot 1/2" so it looks promising with some load developement.
    We've found that the 8.5 Rock barrels take about 2 more grains to pressure up than a Bart or Krieger though!
     
  5. Korhil78

    Korhil78 Well-Known Member

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    What powders would you use for the 155-160 Gr class bullets?
     
  6. elkaholic

    elkaholic Official LRH Sponsor

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    Good question? Maybe something like H100V, N550, RL17, etc
     
  7. tbrice23

    tbrice23 Well-Known Member

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    I'd try IMR 7828.
     
  8. Ed AO

    Ed AO Well-Known Member

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    I’m going to try N565 with the 155 federal edge tlr
     
  9. Korhil78

    Korhil78 Well-Known Member

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    I have 250 of the edge TLR bullets to try out with my 7mm Sherman Max when I get it built. I’m hoping to get 3200-3250 FPS with them. If they shoot accurately, I really think that they will be an all around good bullet. Going to try H4831SC and RL17 I do believe.
     
    Last edited: Jun 12, 2019 at 8:58 PM
  10. elkaholic

    elkaholic Official LRH Sponsor

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  11. elkaholic

    elkaholic Official LRH Sponsor

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    I don't think you'll pressure up with 4831!
     
  12. Korhil78

    Korhil78 Well-Known Member

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    Dang it..fine haha. I still have a bunch of H1000 but don’t know if that will be good with the lighter bullets.
     
  13. elkaholic

    elkaholic Official LRH Sponsor

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    It won't either.
    I think Hy100v might be a good choice
     
  14. Ed AO

    Ed AO Well-Known Member

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    565 probably won’t either. What about rl23 rich?