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Is XM40HB loaded hotter than standard HST?

Discussion in 'Caliber Corner' started by ABNAK, Nov 20, 2012.


  1. ABNAK

    ABNAK
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    The gray boxed, brass cased 155gr .40 stuff. Supposed government contract overrun. I've heard rumor it's loaded to hotter specs than the standard HST 155gr'ers in the colorful box with nickel cases.

    :dunno:
     

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  2. clarkz71

    clarkz71
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    I had seen them for sale somewhere & the fps & ft lbs
    were listed. I compared them to HST's on an ammo site
    and the specs were the same. Just brass instead of nickel.
     

  3. SCmasterblaster

    SCmasterblaster
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    Same here. . . . . :cool:
     
  4. Able 5

    Able 5
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    I cannot comment on the .40 but several years ago I did test some 147 gr 9mm. There was no difference in velocity between the XM9 and HSTs.
     
  5. Nanuk

    Nanuk
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    Those are loaded to the old INS spec of 1200 FPS. The original Remington 155 in the yellow box was 1250 FPS, that was the load responsible for the broken Beretta's (as they all should be).
     
  6. cowboy1964

    cowboy1964
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    I think the "white box" 180gr HSTs (also supposedly overrrun, or out of velocity spec) ran slightly faster than regular HSTs. Not much, maybe 10-30 fps IIRC. I shot 500 of 'em and they ran great.
     
    #6 cowboy1964, Nov 28, 2012
    Last edited: Nov 28, 2012