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Hornady 10mm 175gr CD in Clear Ballistics Gel

Discussion in 'Handguns: General Discussion' started by 5pins, May 15, 2018.

  1. 5pins

    5pins Member

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    Test Gun: Colt Delta Elite.
    Barrel length: 5 inches.
    Ammunition: Hornady 10mm 175gr Critical Duty FTX.
    Test media: 10% Clear Ballistics Gel.
    Distance: 10 feet.
    Chronograph: PACT 1 XP with inferred sky screens.
    Five shot velocity average: 1131fps.
    Gel Temperature 70 degrees.

    It would seem like I’m on a 10mm kick as of late and today is no exception. Today’s offering is the Hornady 175gr Critical Duty. This round shot very nicely out of the Delta Elite. Recoil was not bad at all, but you could tell it wasn’t as watered down as some 10mm’s out there. The five shot group hit point of aim at 10 yards and there were no signs of overpressure, the cases and primers looked fine. The five shot average velocity of 1131fps was 29fps lower than the advertised of 1160fps.
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    Round one in the bare gel had a velocity of 1133fps and penetrated to 15 inches with a recovered expansion of .60 inches. Round two hit at 1141fps and penetrated to 17 inches with a recovered expansion of .58 inches.
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    In the gel covered in heavy clothing, the first round entered the block at 1150fps with a penetration of 17.5 inches and expansion of .57 inches. Number two went 17.25 inches, expanded to .55 inches, and had a velocity of 1169fps. Both of the rounds were recovered base forward.
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  2. Iggy

    Iggy Member

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    A little bit warmish 185 Grain Golden Saber fired in a 10 mm DW CCO, through the back of the head of a road injured antelope opened up completely and blew both eyeballs out of the sockets.

    I don't think a BG would say "That was fun, do it again!" evil_zps20195143.gif
     
    TN Outlaw likes this.
  3. rpenmanparker

    rpenmanparker Member

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    Is the low number for the velocity at 10 feet due to the reference value you quote being measured at the muzzle?
     
  4. CraigC
    • Contributing Member

    CraigC Member

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    Those seem to have done better than the Critical Defense 9mm loads I tested.
     
  5. 5pins

    5pins Member

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    I'm not sure what you are asking?
     
  6. rpenmanparker

    rpenmanparker Member

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    I’m asking whether to measured the velocity at the same distance from the muzzle as the number you are comparing to.
     
  7. 5pins

    5pins Member

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    I don't know the distance Hornady uses, but 10 feet is pretty standard.
     
  8. rpenmanparker

    rpenmanparker Member

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    I thought most manufacturers quoted muzzle velocity on the box or in their literature.
     
  9. Nuclear

    Nuclear Member

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    It doesn't matter that much, the velocity isn't going to slow down that much going 10 feet.
     
  10. rpenmanparker

    rpenmanparker Member

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    No, but OP remarked on it.
     
  11. 5pins

    5pins Member

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    I got the velocity from Hornady's website.
     
  12. rpenmanparker

    rpenmanparker Member

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    I suspect that’s at the muzzle. Explains the difference you observed.
     
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