Got $40? Meet the .950 JDJ

Wanna launch a 1/2-pound bullet at 2300 feet per second? It’s gonna cost you ($40 per round) and it’s gonna hurt. It may break your ribs when you fire it, but the .950 JDJ has one advantage over other cartridges in the 20mm antiaircraft category: it has an almost-unique ATFE ‘sporting use exception’ which allows you to own it without jumping through the burning hoops of fire completing NFA paperwork required for ‘Destructive Devices.’ All right Mr. DeMille, I’m ready for my close-up . . .

I met a custom ammunition maker who’s willing to do the milling and lathing required to load up these beasts. Here I am posing with a [thankfully inert] display cartridge. And I am big; it’s the bullets that got bigger!

29 Responses to Got $40? Meet the .950 JDJ

  1. My friend Marco Rigido of New System Arms in Italy builds a bigger rifle – a full 1.00″ bolt gun firing 2500 to 2800 gr bullets. Not sure if they can be imported here. From what I understand the SSK round is allowed for civilian use by the ATF. The Rigido rifles are legal in Italy, though.

  2. avatarDave J says:

    No thanks, much rather meet booth babes….

  3. avatarJoe Grine says:

    No interest.

  4. avatarMr. Lion says:

    I’d squeeze off a few.

  5. avatarshazbot says:

    I was always under the impression that a gun was something that only dished out pain at one end.

  6. avatargreat unknown says:

    “Sporting Use”????
    For what? Hunting armored cars?

  7. avatarGerard says:

    They must have a heck of a scope and mount.

  8. avatarKevin T says:

    if i had one it would be in an artillery set up not going into my shoulder. just have an anti car gun. legit.

  9. avatarChris Dumm says:

    I think that even the ATFE finally realized that an 80-pound, handbuilt, $8,000 single-shot rifle with handmade ammo that costs $40 per round is probably *not* going to be of any use to a criminal. It would take two or three of them to lift it.

    Common sense, from the ATFE: who’da thunk it?

    • avatarcrstnhhn says:

      I have been a firm believer that – “Common Sense”, and – “Government” – isn’t synonymous! lol

  10. avatarGS650G says:

    Ready for dinosaurs.

  11. avatarGG says:

    Damn, that is light artillery with a stock.

  12. avatarChaz says:

    Power factor = 8050; definitely makes major… ;->

  13. avatarfrankgon4 says:

    For when you only get one shot to stop a bear.

  14. avatarROBERT says:


  15. avatarThomas Lane says:

    How soon before Smith and Wesson builds a 3 shot revolver for it?

  16. avatarRedneck says:

    It would be very interesting to see the results of that shot (assuming they hit). Gotta figure not much in the way if petitioning, would love to see penetration through a row of…..whatever really….

  17. avatarJim says:

    If they make a hollow point it could be a nice place to store car keys or cuff links, maybe a dog bowl for an old hound with arthritis. This weapon has little practical purpose, but what a toy. Would I be missing the point if I asked for a suppressor so I didn’t annoy the neighbors if I was “plinking” in the garden?

  18. avatarJohn says:

    where might one acquire one of these beasts?

  19. avatarKevin says:

    I really want to buy one of these rounds, but don’t know where to get em.I want it inert so i don’t blow myself up & knock down a few buildings.

  20. avatarANDREW says:


  21. avatarButch says:

    Would be great to stop a run away train.

  22. avatarP. Ireland says:

    I am interested in purchasing a single .950 round, preferably live but would consider an accurate replica, for a friend who is an avid ammo collector. Previous posts listing such shells are a year old. Does anyone know of any recent sources for this monstrous round?

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