Barnes 36 gr. VG Load Data

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Thread: Barnes 36 gr. VG Load Data

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    Barnes 36 gr. VG Load Data

    Firearm used: FNH FiveseveN 4.75" barrel

    Started with factory AE5728A and SS197SR cases and pulled the bullets. All other components stock

    Case: FNH brand new
    Primer: Factory
    Bullet: Barnes 36 gr. VG
    Powder: Accurate Arms AA-7
    C.O.A.L. = 1.580 nominal
    Lee Factory Crimp applied
    All charges WEIGHED

    Test loaded 4 rounds each as follows:

    6.4 gr. = 1929/1989/2045/ err/ = Avg. 1988/348
    6.5 gr. = 2112/2056/2075/2102 = Avg. 2086/348
    6.6 gr. = 2031/2000/2010/2054 = Avg. 2023/327
    6.7 gr. = 2108/2137/2185/2205 = Avg. 2159/373
    6.8 gr. = 2248/2116/2189/2193 =Avg. 2186/382*
    6.9 gr. = 2055/2244/2176/ err = Avg. 2158/372
    7.0 gr. = 2143/ err x 3

    Velocity corrected to the muzzle = 2,196 fps.

    Fired on 3/13/17 - 79 deg. F.
    Master Chrony chronograph set at 6 feet.
    I consider the Lee factory crimp applied firmly to be crucial to obtaining best velocity due to the lightness of the bullets used.
    The 36 gr. Varmint Grenade has a much longer bearing surface than the AE and even the 40 gr. V-max.

    Using factory new cases, the primers showed no signs at all of excess pressure all the way up to 7.0 grains. Shoulder movement within expected parameters and not excessive. Despite small sample size, the trend is obvious.

    At $15/box of AE brand 5.7x28, it's actually cheaper to buy it and pull the bullets to obtain new brass for working up loads rather than buying once-fired brass, primers, and bullets, plus the much greater labor investment.

    Running these numbers through Ammo Guide's Velocity Estimator, substitution of barrels gives the following:

    EFK FD 5.4" = 2,255 fps / 407 fpe
    EFK FD 6.0" = 2,314 fps / 428 fpe
    Elite's EFK FD 7.0" = 2,396 fps / 459 fpe

    So much for the naysayers when it comes to the power of the 5.7x28 when fired from the Fiveseven pistol.
    Last edited by Operator; 03-14-2017 at 02:22 AM.
    Omnislug thanked this.


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    I have just got some of the barnes 30 gr. VG and am looking for a starting load. Have you experimented with these?

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    Quote Originally Posted by Adam8275 View Post
    I have just got some of the barnes 30 gr. VG and am looking for a starting load. Have you experimented with these?
    Powder...primer....coal....what are you looking at?
    "We hang the petty thieves and appoint the great ones to public office." - Aesop

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    Mainly a starting powder charge was planning to try
    COL1.451
    CCI small pistol
    AA#7
    Was going to start with Accurates load data for the 35 gr hornady v-max starting powder charge which is 7.4 gr and chronograph it unless you have better info

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    Also will be running this in a fn 57 usg

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    I have data on the Berger 30gr projectile in all three platforms using True Blue powder. I'd start a little lower about 6.5 or so and work up. AA is a bit faster burning than True Blue. At 6.6 I got 2610 out of the PS90 and 2154 out of the USG but primers started to crater in the USG. Always felt that there was room to go further on these but never went back to them. Chrony your rounds and if you see a drop in velocity from a lower to a higher charge (as noted in the FiveseveN data at 6.6gr and 6.7gr), you have gone too far. I calculated about 46,300 psi in the USG and 50,921 psi in the PS90.

    Here is my data on the 30gr Berger Varmint, use at your own risk.

    Attachment 82593



    Attachment 82601



    WARNING: VEL CALC is a mathematical calculated velocity based on a formula developed by me. Press Calc is a mathematical derivative of a formula developed by me. Both of these values are used for informational purposes only and are not actual measured velocities or pressures. Vel Msrd is the actual velocity of the projectile measured with a Chrony Beta Max at 10 ft from the muzzle.
    Last edited by HK SD9 Tactical; 03-20-2017 at 07:35 PM.
    "We hang the petty thieves and appoint the great ones to public office." - Aesop

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