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Two expanded XTP155s driven to 1360FPS

Discussion in '10mm Reloading Forum' started by jeffreybehr, Jul 11, 2010.

  1. jeffreybehr

    jeffreybehr Silver Member

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    I shot a trio of my final PD loads into my regular expansion-test system, that being a series of 1-gallon waterjugs (WJs) front-to-back. I shoot from 10 feet. This time I used my 20SF and the new PD load using Hornady 155g. XTPs. Because others have opined that heavy clothing on badguys changes the expansion characteristics of hollowpoint bullets, this time I shot a couple thru 4 layers of mechanic's (fabric) handtowels taped to the front of the front WJ. Here's what that looked like before.
    [​IMG]

    Here's a pic from the shooting position after.
    [​IMG]

    Here are the 2 bullets.
    [​IMG]
    On the left is the bullet that was fired without a cloth cover; on the right is the one fired thru the 4 layers of cloth. Obviously they expanded somewhat differently, but the keys are that both expanded fully and stayed together. Altho some will opine that this kind of testing is NOT indicative of how bullets perform in the bodies of badguys, I still prefer bullets that perform well in these test versus bullets that come apart in these kinds of tests.

    I'm plenty happy with this load. :supergrin:

    If the pics never show up, see them here http://www.ar15armory.com/forums/Expanded-HornadyXTP155s-d-t85336.html .
     
    Last edited: Jul 11, 2010
  2. Taterhead

    Taterhead Counting Beans

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    Good stuff. Thanks for the pics. I have a bunch of 155 XTPs loaded to 1400 fps in the safe. Seems like they would probably do some work if needed.
     

  3. _The_Shadow

    _The_Shadow Ret. Fireman

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    Jeffery, Thanks for the report!
     
  4. MinervaDoe

    MinervaDoe

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  5. HiredGun77

    HiredGun77

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    Water jugs are excellent test medium. Very consistant. You are right the higher the speed the less they may penetrate but the bigger the hydrostatic wound will be which is key to how high velocity translates into dramatic tissue detruction. You are on the right track. I test the heck out of everything too and have ettled on the XTPs for my personal protection. 155's in the G23 and 180's in the G20 for more penetration. I have not shot any people with it but lots of critters in similar weights to a person and XTP's kill quickly. Staying supersonic as long as possible really makes the difference over merely poking holes in stuff with big and slow projectiles.
     
  6. SDGlock23

    SDGlock23 Glockoholic

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    Looks nice! I know for a fact how well XTP's hold up, even the 155gr. I set up a chronograph in front of some jugs of water lined up back to back, and using VV 3N38, it impacted at just over 1400 fps out of my Glock 35.
     
  7. cwb

    cwb

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    Just out of curiosity, why load them so slow?
     
  8. jeffreybehr

    jeffreybehr Silver Member

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    'So slow'? 1360FPS isn't slow. It may be less than the Big-10's max, but it's WAY over the average handgun-bullet's velocity.

    But the reason I stopped there was that accuracy peaked about at about that velocity.
     
  9. MinervaDoe

    MinervaDoe

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    ttt

    Time for some new people to see this nice thread.
     
  10. glock20c10mm

    glock20c10mm

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    Thank You! I wasn't on GT too much around that time. On top of that I've been curious as to how well the 155gr XTPs hold up at higher than commonly seen velocities. Good to see!

    I see more info out there for 155gr Gold Dots, but far less for the 155gr XTPs. I think those 155gr XTPs are kind of a "sleeper" bullet that stand up very well to high velocity that more and more of us are now waking up to. Heck, with Federal Agencies now toying with 155gr AND 135gr 40S&W loads...we'll see what the future holds in probably not too distant a future.

    I suspect the trend will continue toward lighter than heavy for caliber bullet loads now that they've learned how to make bullets hold together so well.
     
  11. robert91922

    robert91922

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    I will start to collect such water jugs to see what's gonna happen with my 155gr XTP's and GD's driven to 1500fps. Four in line would be enough, I presume.
     
  12. MinervaDoe

    MinervaDoe

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  13. glock20c10mm

    glock20c10mm

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    And, clothing in front of the jugs would be cool too.
     
  14. robert91922

    robert91922

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    5 jugs of water & 4 layers of clothing & 155gr XTP@1500fps
    Will do that until the end of this month. A supermarket nearby sells drinking water in comparable jugs of 4 liters and it's cheap. Drinkin' a lot of water (2 liters a day) might be good for health :supergrin:
    A friend of mine w. good camera loves to make such pictures, after all I was the one who infected him with a shooting virus few years ago...
    Hey, my next post here will be the 100th ! Do I get some award or something? :rofl:
     
    Last edited: Feb 3, 2011
  15. MinervaDoe

    MinervaDoe

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    Sure.
     

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  16. glock20c10mm

    glock20c10mm

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    Looking forward to the coming results! Will you have another different round available to test it against for some form of comparison, say in 9mm or 45Auto, or will it just be straight up 155gr XTP 10mm?

    Remember:fred:, even too much water can kill you.:drowning:


    100th post...:violin:

    ...Hmmmm...:headscratch:

    ...Will this do? :wave:
     
  17. robert91922

    robert91922

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    That will do, thank you :wavey: 100 - small number for you ol' GT vets, but meaningful for noob like me :embarassed:
    I will test only 155gr XTP@1500fps. Would like to test 155gr GD@1500fps as well, but I'm not sure if I could collect enough water jugs.
     
    Last edited: Feb 8, 2011
  18. Berto

    Berto woo woo

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    The XTP's are great boolits when they have some velocity behind them.
     
  19. TexanOutWest

    TexanOutWest I'll Take Point

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    OK, so this'll tell you where a geek's head is at. I saw "Two expanded XTP155s driven to 1360FPS" and immediately thought,"HOLY @#$%! :wow: This guy's getting 1360 frames per second out of TWO video cards! I wonder if their SLI'd or Crossfired. Either way that's some hella speed for only two cards."

    Aaaaaaaaaaand then I clicked the post.... :whistling:



    Tex
     
    Last edited: Feb 8, 2011
  20. MinervaDoe

    MinervaDoe

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    :rofl: At least you have a clean mind.