Posts Tagged ‘.223’

A Gun For Dinosaur Vs. T-Rex

Saturday, July 5th, 2025

If you’re well-read in science fiction, there’s a good chance you’ve read L. Sprague de Camp’s “A Gun for Dinosaur.” Now Scott from Kentucky Ballistics tests just how big a gun you need to take out a ballistic gel replica of a T-Rex skull.

Guns used:

  • .45 ACP (dual barrel)
  • 10 mm
  • .44 Magnum
  • .50 Magnum
  • 12 gauge shotgun
  • .45-70
  • .223
  • .460 Rigby
  • .577 Tyrannosaur (naturally)
  • .700 BMG
  • 4 bore (1″)
  • .950 JDJ

    • There are evidently only 20 .577 Tyrannosaur rifles, and only four .950 JDJs, in the world. One of the latter sold for just under $1 million last year, so if resurrected cloned dinosaurs do make a comeback, hunting them will probably be a very expensive hobby…

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    Posted in Guns, video | 4 Comments »

    Rifle Bullets vs. Steel At 250,000 FPS

    Sunday, February 19th, 2023

    Here’s some spectacular slow motion footage of various rifle calibers hitting a steel plate at 250,000 frames per second. Rounds tested include .223, 5.56 NATO, 300 Blackout, 7.62×39 (the AK-47 round, but out of an AR pattern rifle), 7.62×54 (Mosin–Nagant), .308, and our old friend, .50 BMG.

    A few notes:

  • 5.56 NATO seems to pack more punch than 300 Blackout, which is strangely unimpressive.
  • You can actually see the shadow of the shock cone from the 7.62×39, which is pretty cool.
  • The fireball from the Mosin–Nagant is huge!
  • The .50 BMG is shot from a Noreen 50, which I don’t think I’ve seen before (on video or in person).
  • The .50 BMG punches through the ballistic steel plate and destroys the wooden backstop. You can see the shockwave distortion pass in from of the camera.
  • The fireball from the .50 BMG muzzle break is a lot more noticeable at 250,000 fps compared to 33,000 fps.

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    Posted in Guns, video | 5 Comments »