Cross sectioning ammunition

sean18mb

sean18mb

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I remember a while back someone here asked about cross sectioning rounds for display. I can't seem to find the old thread. Does anyone know which one I'm talking about? I'd like to read through it again, and see what all was written there. I'd like to try for myself with some ammo.

-Sean
 
Thanks, but that's not the one I'm talking about. It was on here maybe a year ago. I can't remember the title of the thread, so it's hard to search for it. It was talking about crosse sectioning, and the steps involved. Anyone?

-Sean
 
A good bud of mine tried to cross section a live .303 round by working it on a bench grinder. He does not recommend this method; it hurts.
He later started to cross section a 3.5" bazooka which came out of the local scrapyard, and found one of them with some kind of putty in the warhead. Fortunately, he had already learned his lesson on a smaller scale with the .303 and did not proceed with that particular round.
 
flechettecutaways.jpg

Cutaways.jpg


This sort of thing can be very hazardous, and end up costing you fingers and/or eyes; I know people that have had rounds go off in their hands, followed by a trip to the emergency room :( Primers are also amazingly powerful, and can do as much damage as a bullet. Unless you know EXACTLY what's inside a given round, I wouldn't do this, and it's also why I'm not really comfortable with posting a "how to".
 
Those are rifle flechettes (and therefore not covered by the prohibition on SHOTGUN flechettes); the left round is a 5.6x57mm XM645 SPIW cartridge, for the US Army's Korean War-era "SPIW" (Special Purpose Individual Weapon) program; these were hand-loaded by IVI in Quebec at a cost of $3.50 PER ROUND , and fired off at a rate of 2,000 rpm. The right round is a .223 round made for the US Army's ACR (Advanced Combat Rifle) program. Both of these used angled tail fins to spin the dart (and hopefully, give it more accuracy), but they still weren't accurate enough to meet projections, so the idea was dropped. In terms of target effect, though, they produced a surprising amount of damage; because of their velocity (a lot higher than the "beehive"-style artillery flechettes) they could pierce a surprising amount of material, and if they hit flesh, they would "fishhook", causing real problems.
 
SDC said:
Those are rifle flechettes (and therefore not covered by the prohibition on SHOTGUN flechettes); the left round is a 5.6x57mm XM645 SPIW cartridge, for the US Army's Korean War-era "SPIW" (Special Purpose Individual Weapon) program; these were hand-loaded by IVI in Quebec at a cost of $3.50 PER ROUND , and fired off at a rate of 2,000 rpm. The right round is a .223 round made for the US Army's ACR (Advanced Combat Rifle) program. Both of these used angled tail fins to spin the dart (and hopefully, give it more accuracy), but they still weren't accurate enough to meet projections, so the idea was dropped. In terms of target effect, though, they produced a surprising amount of damage; because of their velocity (a lot higher than the "beehive"-style artillery flechettes) they could pierce a surprising amount of material, and if they hit flesh, they would "fishhook", causing real problems.
Click to expand...

Thats pretty interesting. I bet they are hard to come by.
 
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