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I have some doubters about the 1500 FPS 9mm +P+

Discussion in 'Handguns: General Discussion' started by intercooler, May 24, 2012.

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  1. intercooler

    intercooler member

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    I thought it was kind of nuts too that a 115gr GD did that out of a 4" barrel. Has anyone witnessed or heard of one doing that? I posted the YouTube video but had some questions on it. Someone messaged me and thought I read it wrong, maybe it was 1400.

    http://www.youtube.com/watch?v=6zaAaDlFmFo&feature=plcp


    I'm going shooting again tomorrow and was debating putting the camera in a way to capture the XD and the reading if possible.
     
  2. murphys_law

    murphys_law Member

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  3. intercooler

    intercooler member

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    I need another good tripod/camera to zoom out and catch everything. Only problem is not being able to close-up the display at the same time. I'm going to try some stuff tomorrow to capture it.
     
  4. intercooler

    intercooler member

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    It's in strong 10mm territory I know. If shot out of a 5" barrel using BBTI charts that's 1600 FPS/ 653 LBS. May not hold together but nasty!
     
  5. Zoogster

    Zoogster Member

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    Does it explode if there is a piece of lint in the barrel?

    What if you put a drop of oil in there, or fire it in the rain?




    With the right powders you can certainly play well into proof load territory on many calibers, it is just foolish to do so as you remove the margin of error that is added for slightly off cartridges, minor powder changes over time, unexpected barrel or firearm conditions, and many other slight variances that occur in real life.


    Most likely a contact shot in self defense with such a load for example would result in a bulged or burst barrel or case rupture venting pressure into the firearm and/or out the ejection port.
     
  6. 1911Tuner

    1911Tuner Moderator Emeritus

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    Concur with Zoog's statements. I think that there's way yonder too much emphasis placed on velocity. It leads people to take unnecessary risks in pursuit of the "magic numbers."

    As a wise man once noted: (paraphrased)

    The pressures required to accelerate a 115-grain bullet to 1500 fps in 4 inches of barrel are more than sufficient to blow your eyes through the back of your head."
     
  7. Certaindeaf

    Certaindeaf member

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    Back in the old days, standard factory 115's were loaded closer to 1250-1300 than the now usual 1150 or so so a 115 +P+ at 1500+ seems normal and "proper".
     
  8. intercooler

    intercooler member

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    They were rated 1400 and I didn't see any pressure signs. I'm off to shoot some more with a better video. FWIW Kevin said the webbing is very strong on 9mm. Possibly one of the strongest out there.
     
  9. LeonCarr

    LeonCarr Member

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    I do not doubt the OP's velocity figures.

    115 grain Double Tap 9mm +P is advertised at 1415 fps from a Glock 17. I have chronographed Winchester Ranger 127 grain +P+ at an average 1372 fps from a Glock 17, beating the factory ballistics for a .357 Sig.

    I do wonder why it is necessary for people to want to blow up their guns in the search for that extra 50-100 fps.

    Bragging rights? Showing off their mangled/missing hands and arms?

    Just my .02,
    LeonCarr
     
  10. The Lone Haranguer

    The Lone Haranguer Member

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    Those are still a long way from 1500.
     
  11. Certaindeaf

    Certaindeaf member

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    Is there any documentation of these rounds causing mangled/missing hands and arms, blowing your eyes through the back of your head, or exploding if there is a piece of lint etc. in the barrel?

    I shot around 50,000 essentially proof loads through a forged Hi-Power many years ago and had to replace the firing pin stop once (I dry fired a lot) and the slide developed a hairline crack.. I sold that gun for more than I paid for it retail.. with the crack.
     
  12. intercooler

    intercooler member

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    I had a couple hit 1500 again today, so no fluke. Just waiting for the video to upload. I must be a give me hot and I shoot better freak, because I hit center better with these than I did with the 1300 FPS standard 115's from Kevin. They shot excellent and all my fingers, hands, eyes are still intact. Starline brass looked excellent!
     
  13. intercooler

    intercooler member

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  14. Certaindeaf

    Certaindeaf member

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    That'd make a fine varmint load.. eyeballs meet back of head indeed.
     
  15. 1911Tuner

    1911Tuner Moderator Emeritus

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    Not documented, but I knew of one young lion about 20 years ago who lost a finger and severely damaged his thumb from an overloaded .45 Colt round, and totaled a nice old SAA in the process. The kid's sunglasses saved his eyes.

    When you pull the trigger, you're essentially touching off a controlled explosion 18 inches from the end of your nose. Is another 50-100 fps really worth the risk?

    Where was the crack? If it was in the port, adjacent to the breechface...it'll be a ka-blooey event sooner rather than later.

    And just in case you missed the point, I'll say it again.

    "The pressure required to accelerate a 115-grain bullet to 1500 fps in 4 inches of barrel is more than enough to blow your eyeballs through the back of your head.

    Doubt it?

    http://www.google.com/search?q=pict...fficial&client=firefox-a&source=hp&channel=np
     
  16. Certaindeaf

    Certaindeaf member

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    I operate under no assumption that bad things don't/won't happen in the world.
    I asked if the chicken littles had documentation of this load causing what was posited/asserted above.
    Your link to Google of "pictures of blown up revolvers" is a red herring and not germaine to my query.
    Oh, and that Browning cracked above the ejection port, as would be/is expected.
     
  17. BSA1

    BSA1 Member

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    I have personally witnessed three revolver blow ups due to overpressure loads. Revolvers are much safer for the shooter in this type of accident as the pressure is vented upwards carrying parts of the gun with it. Risk to bystanders is very much a factor.

    I have also witnessed overloads in semi-auto. In those instances the pressure blew downwards into the magazine cooking off some of the loaded rounds. Results were usually injury to the shooters hand. I would hate to see the result if the slide came off the frame into the shooters face.

    I too would like to see a target that could tell the difference of 100 fps. in max loads.
     
  18. Certaindeaf

    Certaindeaf member

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    It is generally conceded that 400fps and 45fpe is what it takes to kill a man.
     
  19. CountryUgly

    CountryUgly Member

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    I've seen a Judge blow out a cylinder(.410 brown bear shotshell):eek: and had a kel tec 9mm blow the slide off in my hand (the takedown pin broke):uhoh: so ya stuff happens but I think:neener: my 92FS can handle those Gold Dots:neener: so off to the LGS I go:neener:. I got a pesky opossum that's been wrecking havoc for weeks and he's been too quick for me so far but I'm gonna bet he can't outrun these smokin' hot babies:evil:.
     
  20. Certaindeaf

    Certaindeaf member

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    Back on track..

    1500 is sweet!
     
  21. 1911Tuner

    1911Tuner Moderator Emeritus

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    Well, then...do carry on! After all...it was proofed with proof-level ammo.
    Right?

    I guess those ballisticians who had a hand in setting maximum data in the manuals were Chicken Little types who were way scared.

    That "expected crack" above the port...Does it run vertically from the port...about an eighth of an inch forward of the breechface...toward the rail?
     
  22. Certaindeaf

    Certaindeaf member

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    Alrighty!
     
  23. 1911Tuner

    1911Tuner Moderator Emeritus

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    Just curious...

    Did the slide crack look like either of the ones in this illustration?

    Tell me, do.

    StressCracks.jpg
     
  24. Certaindeaf

    Certaindeaf member

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    ^
    Don't pray for me. Don't. I told you the dirt so calm thy freaking self.
     
  25. Certaindeaf

    Certaindeaf member

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    Perhaps... I forgot the perhaps part.
     
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