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Behold the 5.7MM Express


From Stuff

19 Responses to “Behold the 5.7MM Express”

  1. Paul Says:

    Should be trans sonic.

  2. emdfl Says:

    Years ago some gunny at Gun World did a .17/.44mag wildcat. He actually chambered and built a small frame Martini rifle to shoot it. He said he was going to carry it in his golf bag as his golf-course ground-hog gun. I seem to recall that forming the cartridge took five dies.

  3. ExUrbanKevin Says:

    Transsonic? Heck, I’m expecting Warp 8 outta that sucker!

  4. jon spencer Says:

    How long of a barrel will be needed to burn all of the powder?

  5. kbiel Says:

    Now, if we can get the enemy to form single file lines of ten to twenty men…

  6. Weer'd Beard Says:

    I’m wondering if the bullet can handle the pressure or if it will deform and start to tumble as soon as it’s free of the rifling.

    I think he’s reaching for the wrong tool. I think this would work a little better:

  7. drstrangegun Says:

    Bullet’ll be fine. What you have to worry about is the hot, high pressure gasses scrubbing 1/16″ of rifling lands off the breech end and blowing them out the muzzle with every shot.

  8. The Packetman Says:

    Reminds me of the bullet a buddy and I envisioned during Desert Storm ……. a 105mm artillery shell necked down to .50 cal, shooting a depleted uranium projo!

  9. Farm.Dad Says:

    another case of just because you can doesnt mean you should .

  10. Laughingdog Says:

    “another case of just because you can doesnt mean you should”

    I disagree. This is clearly a case of “if doing it will let you screw with someone’s head, it is a moral imperative to do it”.

  11. D.W. Drang Says:

    37mm anti-tank gun brass necked down to take a phonograph needle…

  12. Aaron Says:

    Drang, I used a round like that back in the early 80s to put a .002 inch, boat-tailed hollow point Gramophone needle into gopher whilst varminting in Western Montana. Of course the gopher I hit was somewhere in South Dakota . . .

  13. KingsideRook Says:

    That’s badass. New barrel every 20 rounds, but hey.


  14. KCSteve Says:

    Now, now.

    His sign clearly noted that it was a single-shot.
    If potential customers didn’t understand that he meant you needed a new barrel after each shot that’s not his problem.

  15. Les Jones Says:

    I’m guessing when it fires it makes a loud, sharp, whistling noise.

  16. elmo_iscariot Says:

    “I think hes reaching for the wrong tool.”

    Dude, a carbon dioxide laser? It’s _already_ a freakin cupro-plumbic laser.

  17. Diamondback Says:

    Needs a cool nickname like Stinger or Hornet or something… Kinda reminds me of some of the custom rounds Dad used to make when shooting benchrest years ago.

  18. Flock of One Says:

    “Needs a cool nickname”

    You mean like – Pinky of Satan or something?

  19. Spiff Says:

    Maybe Gaston Glock can design a pistol around this cartridge – be different!