24 thoughts on “Yup, you need one

  1. OK, it’s $40 a bullet…that’s too pricey, unless it’s a nuclear round or something like that.

  2. It’s things like this that make people think we don’t need Abrams tanks any more.

  3. I’m no gunsmith, nor have I ever played one on TV, but by my crude calculations that round would be a bigger caliber than a 20mm cannon. I believe an appropriate name for this rifle would be “Main Tank Gun.”

  4. My shoulder aches just from watching.

    #6 Poohbah: Oh, yeah. At $40 a pop, it needs to be a smart munitions, fire and forget, micro anti-matter, anti-everything-including-UFOs, with a sub-Megaton nominal yield. Hmmm. Wonder how this would work with squirrels?

    #13 Redacted1775: I’d be more interested in the exoskeleton required to actually fire a pistol version …

  5. Small correction – a grain is about 1/434 of an ounce, or 1/7000 of a pound. So this mother is almost a 25mm bullet (that’s about 25% thicker than a 12 gauge slug)- I am guessing at that speed you are talking somewhere around 50,000 foot pounds of muzzle energy. Like four .50 bullets hitting in the same spot – yeah, it’s gonna hurt. Not for long, though.

  6. Just a correction. A grain is 1/7000 of a pound not an ounce. There are 7000 grains in a pound.

  7. @15- I saw something on this awhile back, while it was under construction. The guy took 25mm cannon brass, and cut it down in length to make the shell, if I recall. Probably has a bit to do with how expensive the cartridges are.

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