More LAPUA Naturalis 140 gr testing

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  • lrgrendel
    Warrior
    • Jul 2013
    • 662

    More LAPUA Naturalis 140 gr testing

    I was testing a bolt 6.5 Creedmoor and a Howa bolt 6.5 Grendel.
    Thought I'd post both results.

    Sea level. 92deg F

    6.5 Creedmoor Ruger Precision rifle
    LAPUA NATURALIS lead free 140 gr
    H 4350 powder
    federal 210 m primers

    Measured velocity using a Magnetospeed.

    40.5 grs 2636 fps
    41.0 grs 2665 fps
    41.5 grs 2667 fps
    42.0 grs 2712 fps Retrieved
    42.5 grs 2732 fps Retrieved
    43.0 grs 2754 fps Retrieved

    The 3 bullets in the photos are the last 3 fired. Expansion was good. Bullets stayed together well.

    6.5 Grendel Howa heavy barrel
    LAPUA Naturalis 140 gr
    CCI 450 primers
    LAPUA brass
    CFE powder

    I was a little hesitant to go too high with no published data and CFE being what it is.
    There were no pressure signs at all.
    I did not retrieve any of these bullets.

    26.5 gr 2086. fps
    27.0 gr 2108. fps
    27.5 gr 2150. fps
    28.0 gr 2209. fps
    28.5 gr 2227. fps
    29.0 gr 2276. fps
    Last edited by lrgrendel; 07-15-2017, 07:51 PM.
  • Von Gruff
    Chieftain
    • Apr 2012
    • 1078

    #2
    What was your catching media for the Naturalis
    http://www.vongruffknives.com/

    sigpic Von Gruff



    Grendel-Max

    Exodus 20:1-17
    Acts 4:10-12

    Comment

    • lrgrendel
      Warrior
      • Jul 2013
      • 662

      #3
      A 13" square piece of Cypruss.
      Very coincidentally all 3 barely made it through after expanding and were just setting there on the far edge.

      Comment

      • lrgrendel
        Warrior
        • Jul 2013
        • 662

        #4
        Originally posted by lrgrendel View Post
        I was testing a bolt 6.5 Creedmoor and a Howa bolt 6.5 Grendel.
        Thought I'd post both results.

        Sea level. 92deg F

        6.5 Creedmoor Ruger Precision rifle
        LAPUA NATURALIS lead free 140 gr
        H 4350 powder
        federal 210 m primers

        Measured velocity using a Magnetospeed.

        40.5 grs 2636 fps
        41.0 grs 2665 fps
        41.5 grs 2667 fps
        42.0 grs 2712 fps Retrieved
        42.5 grs 2732 fps Retrieved
        43.0 grs 2754 fps Retrieved

        The 3 bullets in the photos are the last 3 fired. Expansion was good. Bullets stayed together well.

        6.5 Grendel Howa heavy barrel
        LAPUA Naturalis 140 gr
        CCI 450 primers
        LAPUA brass
        CFE powder

        I was a little hesitant to go too high with no published data and CFE being what it is.
        There were no pressure signs at all.
        I did not retrieve any of these bullets.

        26.5 gr 2086. fps
        27.0 gr 2108. fps
        27.5 gr 2150. fps
        28.0 gr 2209. fps
        28.5 gr 2227. fps
        29.0 gr 2276. fps

        Shot a little more out of my Howa grendel with the Naturalis today. Only went up in 0.3 grain increments using my Magnetospeed again. No pressure signs at all. No flattening of primers or erratic velocities.

        I began at 29.0 gr where I finished the last time.

        29.0 gr 2269 fps
        29.3 gr 2287 fps
        29.6 gr 2309 fps
        29.9 gr 2329 fps

        This maybe where I stop for now unless a powder manufacture comes up with some "bolt" gun load data.

        ANYONE READING THIS PLEASE BE ULTRA CAREFUL. THIS IS A BOLT GUN AND NOT AN AR15. THERE IS A LOT OF BEARING SURFACE ON THIS BULLET THAT CAN CAUSE EXTREME PRESSURE.

        Comment

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