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Underwood 10mm 180gr GDHP Gel Test

Discussion in 'The 10 Ring' started by Merrixs, Sep 1, 2012.

  1. Merrixs

    Merrixs

    49
    0
    Aug 3, 2011
    Some might call this a fail for partial jacket gnarlyness, but I say it's still 10mm love. 9" of permanent stretch cavity that you can see through, OH YA!

    [ame]http://youtu.be/sl_n_miLfbY[/ame]
     
  2. attrapereves

    attrapereves

    2,099
    0
    Sep 11, 2011
    Midwest
    I think the 155/165gr Gold Dots hold up better at 10mm velocities. If I were to carry a higher grain bullet for defense, I'd handload some 175gr Silvertips.
     


  3. Did he only do the test once? I'd think doing several would be a better predictor of performance.
     
  4. Merrixs

    Merrixs

    49
    0
    Aug 3, 2011
    Ya, for the most part, he does one shot into the block, then melts it down and reforms for the next test.
     
  5. SPIN2010

    SPIN2010 Searching ...

    1,781
    1
    Mar 14, 2010
    On the move ... again!
    TNOD9 goes into the parameters of the coming repeat of the test. He even states the separation of the jacket from the projectile is a failure of the round. I believe the next test is going to be a water jug test. I am also sure he will repeat the gel test.

    I have been watching his channel since 2008, and he is very thorough on his testing.

    But, Man! The test? Who cares in this case, imagine getting hit with that 10mm round (separation or not)? :wow:
     
  6. Merrixs

    Merrixs

    49
    0
    Aug 3, 2011
    Exactly
     
  7. Taterhead

    Taterhead Counting Beans

    3,603
    112
    Dec 13, 2008
    Boise, Idaho
    Great video. High quality, and well narrated.

    No doubt that shows pretty darned impressive terminal effects. It gives me a little pause to wonder if the bullet would survive intact if called on to penetrate an intermediate barrier.

    That is the primary reason I have not been super keen on 180 gr GDHPs for top 10mm velocities. I wouldn't necessarily feel under-gunned with it though. I personally prefer a 165 GDHP at 1335 fps.
     
  8. harrygunner

    harrygunner

    578
    28
    Sep 4, 2010
    Wish he'd used Underwood's 180gr Hornady XTP 10mm rounds. The issue with Gold Dots in 10mm was uncovered by 'turbonatr' back in 2005, about seven years ago.

    The 180gr XTP is rated to 1500 ft/s.
     
  9. Merrixs

    Merrixs

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    Aug 3, 2011
    Patience grasshopper…I got word from him today that it will be done in the future.
     
  10. Raoul23

    Raoul23

    8
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    Sep 2, 2012
    I am thinking 200gr HST or T-series would be an interesting load.
     
  11. Had read about 180 Gold Dot overexpansion issue at velocities higher than 1200 fps so I have loaded my urban defense ammo w. this bullet to approx 1180-1200 fps.
    Comparing this with 40SW 180gr defence rounds (e.g. Speer) at approx. 1000fps it's still way enough for 2-legged attackers.
     
    Last edited: Sep 5, 2012
  12. Andrew Wiggin

    Andrew Wiggin

    626
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    Dec 15, 2011
    Not as pretty a video but 180 gr XTP at about the same velocity as Underwood:


    [ame="http://www.youtube.com/watch?v=XahzIeDo1Vk"]10mm 180gr XTP @ 1,290 fps gelatin test - YouTube[/ame]
     
  13. sgtbones

    sgtbones

    514
    35
    Mar 7, 2010
    How about silver tips at 1360 fps I still have some from Swamp Fox.
     
    Last edited: Oct 31, 2012