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Gelatin test: .38 spl Buffalo Bore 158 gr LSWCHP

Discussion in 'Handguns: Revolvers' started by chopinbloc, Feb 4, 2013.

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  1. chopinbloc

    chopinbloc Member

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    Video:

    http://youtu.be/yPrw3B-8HjE


    .38 spl Buffalo Bore 158 gr LSWCHP gas checked fired from a S&W 638 into calibrated gelatin with four layers of denim. I kept the revolver and ammo in a Ziploc baggie submerged in ice water on the trip out to make sure the powder was at a pretty low temperature because of my results with Speer 135 gr +P Gold Dot.

    BB calibration: 586.8 fps, 3.4"

    Impact velocity: 960.4 fps
    Penetration: 12.1"
    Retained weight: 159.6 gr
    Max expansion: 0.695"
    Min expansion: 0.599"
     
  2. 351 WINCHESTER

    351 WINCHESTER Member

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    We shot that same load from a 640. As I recall we got 1006 fps. It's a gc bullet.

    Thank's for sharing.
     
  3. chopinbloc

    chopinbloc Member

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    It should. Please note that my test involved ammo and revolver that was very cold. Testing in normal (~70 degrees or so) conditions should result in higher velocity.
     
  4. mbt2001

    mbt2001 Member

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    The Buffalo Bore is a recreation of the old "FBI" load. That load worked very very well out of the issued .38's and .357's of the day.
     
  5. monet61

    monet61 Member

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    OP;
    Thanks for posting that. I have done some haphazard testing with this round, but yours showed me everything I needed to know. I am actually using that round in my Colt Lawman MKIII exclusively. Now with what you posted, my confidence in the round is verified.
     
  6. roaddog28

    roaddog28 Member

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    Its my self defense round in my Ruger Police Service Six 357 magnum 4 inch barrel.
    I prefer this round over the 357 hollowpoints.
    Howard
     
  7. Dave T

    Dave T Member

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    Sorry mbt but that's not quite true. The BB +P is more closely associated with (a duplicate of) the old 1930s 38/44 round, the grand father of the 357 Mag. From a 4" barrel the BB load will give ~1140 fps.

    The so called "FBI" load never reached 1000 fps in any chronograph test I've seen or read. I'll grant you that load was heavier than today's 158g +P LSWC-HP loaded by WW, Rem or Fed, which all deliver under 900 fps from a 4" revolver.

    I have personally choreographed or witnessed these current "FBI loads" fired from 4" revolvers and they were all in the low 800 fps range.

    Dave
     
  8. chopinbloc

    chopinbloc Member

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    Wow. Low 800s from 4" revolvers? I'm glad I went with the BB instead of the oft recommended Remington 158 gr LSWCHP.
     
  9. sidheshooter

    sidheshooter Member

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    It's also an upgrading of the old RCMP spec load: the Canadians wanted an "FBI" load that would do an honest 1000 fps from 4" model 10s. I *think* that CorBon was the first to offer that specific loading to the public, but I don't know. I used to shoot pins for fun with the CorBon version; if I got the hits, it took the pins right off the table. Buffalo bore just takes off from there; that's some good stuff for .38s, right there. I've got it in my SPNY these days.

    Thanks for posting the test. unsurprising performance, but comforting nonetheless.
     
  10. Boge

    Boge Member

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  11. Water-Man

    Water-Man Member

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    I've gotten 1140fps out of my 3" Model 10-7 with that load.
     
  12. jeepnik

    jeepnik Member

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    Very interesting. I'll try to remember this the next time a bowl of jello attacks me.
     
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