Thursday, August 08, 2013

Under pressure.

That is not actually a belted magnum variant of the .223 Remington case; the "belt" is where the pressure expanded the case head.

The round locked the Bushhamster "CAR-15" flattop carbine up tighter than a drum, hogged out the primer pocket and unseated the primer, and flattened the headstamp against the breechface.

This dude came really close to a very eventful range trip. Always wear your eye protection.

13 comments:

  1. Sooo..I guess you're saying to not reload this one?

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  2. You may need a large rifle primer and some duct tape.

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  3. Wonder how much of what powder. Not a lot of room in a .223 case.

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  4. Maybe someone used a pistol or shotgun powder for the charge? Using a powder with a quicker burn rate will cause the pressure to spike sky-high.

    Al_in_Ottawa

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  5. Somewhere I have a photo file of some AMU empties fired on the 600 yard targets. The case heads resemble a plaster cast of the bolt face. But they do that on purpose, and, I'm presuming, very carefully.

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  6. .223 Belted Magnum?

    That's be all kinds of cool in a .410 frame sized double rifle!




    Jim
    Sunk New Dawn
    Galveston, TX

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  7. Just saw an FN AR blown in half with an out of battery slam fire a few weeks ago. My guess is a high primer.

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  8. I'm real glad that my preffered load for .223 (25.5 grains of Varget) nearly fills the case.

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  9. reloading is fairly precise tedious work. If you don't have the discipline to pay attention, don't do it.

    It is not something you do while playing Warcraft or eating Cheetos while swilling some barley pops.

    Not that I am accusing anyone, just saying.

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  10. Titegroup will do it...

    For me, there is a strong arguement to buy a progressive press for EACH caliber that I plan to reload in bulk rather than changing out dies or tool heads.

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  11. It would be interesting to cut that case in half lengthwise to see how thin it is in the "belt" area. I'm guessing it isn't far from separating the head.

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  12. My son has a Mosin 44 with an extremely pitted chamber and barrel.

    Is came that way from Rodina!

    We discovered it after the smooth lining of Bakelite-grade cosmoline was finally removed.

    I have convinced him to replace the rifle, based on the interesting patters imprinted in the casings by the chamber walls and how hard the empty casings are to remove from the rifle.

    Still has bayonet, though!

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  13. Was firing an M1 Carbine. Had a head separation. cleared it. Had another one in th next mag. Stopped. Examined fired cases. Freaked. CAREFULLY checked chamber with good light.

    Not "pits". . . "potholes". The fired brass looked artfully embossed.

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