Kormath Posted May 30, 2019 Share Posted May 30, 2019 previous post of our firearms got me back into the history of various guns, and that sidelined into research on the progression of ammunition, and that led to some of the oddest guns created. Makes me curious on what you've seen, or if you are lucky enough to own one of these oddities. I don't have a home computer anymore so my research is limited to down time at work, which lately has been kinda scarce. Here's one of hte weird ones i've found. Gyrojet. A handgun or carbine with unique ammo. A special designed bullet, similar to the rocketball from the 1850s. The bullet is a solid case, with solid rocket fuel instead of gun powder, and the ports on the bottom of the case were specially drilled to create the spiral that makes bullets accurate. The way this gun fired is as weird as it's ammo. That notch and tab above the trigger is the hammer. It slams the bullet back into the firing pin. then as the bullet leaves the gun it's supposed to reset the hammer in the down position for the next shot. That section above the grip slides back, and you push the shells one by one down into the handle. You can use the tab at the top front corner of the grip to pull the spring down to make loading easier. gun had a few problems though. with normal firearms the explosion from the powder shoots them out the barrel, and from there on they're slowing down and affected by gravity. THese gyrojet bullets have solid rocket fuel in each bullet (which also extremely increased the cost per shot) so instead of losing speed as they exit the barrel, they continue to gain speed, and on top of that the ports in the back that make the bullet spiral, were never drilled consistently and accurately, so you could never reliably tell where the shot would hit. Not to mention the fps was exremely low, like 250 fps out of the barrel, compared to a 45 acp (similar size) at about 850 fps from a 1911 pistol. The bullets above are the first edition, with 4 ports for spin, later bullets were made with 2 holes to speed up the process. To drill they were put in a special press and drilled at a specific angle. Then rotated 90 deg. and drilled again, etc. The angle hole would constantly break the drill bits, and the tedious task of drilling was.... tedious, and the drillers, like all people doing tedious tasks, would get complacent and not be as aware as they should, often causing the holes to be angled wrong, which screwed up the spiraling, and made the bullets even less accurate. Link to comment Share on other sites More sharing options...
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