22 case rupture

Nate

March 28, 2002 10:44

This happened last night at an indoor shooting range belonging to my university. The Pistol club had a group of girls down there that had never shot before. She was unharmed when this happened. This happened in a Ruger Mark II. Gun was cleaned earlier that night, and had been fired approximately 75 times before this happened. When a fellow range officer showed me this, right after it happened, the case was about a 1/8th of an inch into the chamber and the extractor appears to be what struck the round to make it go off. What caused the round to do this? Isn't the case slid underneath the extractor as the round is inserted into the chamber?After the ladies left, the gun was disassembled and given a twice over. Nothing appeared to be wrong. So the president of the club put a few rounds through it with no problems.Is this just a fluke or something that needs to be looked at now? OK, for some reason I cant get the picture to upload to the site I use. [This message has been edited by Nate (edited 03-28-2002).]Update:still cant get that picture to load up, thought I knew what I was doingThe gun is about 3 years old, and is one of the older ones in the club. But have never had a problem with itif anyone would like to see the picture drop me an email: ngwhitin@mtu.edu[This message has been edited by Nate (edited 03-28-2002).]

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  MIKE WISKEY

  March 28, 2002 12:37

  i would guess that the round either 'poped' out of the magazine befor it slid under the extractor (weak mag. lips?) or the rim of the top round was in back of the next round in the magazine and the slide set the primer off when it tried to strip the top round into the chamber.

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  spclark

  March 28, 2002 12:49

  Might this be a situation attributable to "limp-wristing?"If the lady had never fired a weapon before & was taken aback by the recoil we're all used to, could this have changed the timing & inertiaof the slide on it's return to battery?What age is the recoil spring on this particular firearm? Does it compare with similar springs in like-model pistols in the armory?

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  SSG ZAG

  March 28, 2002 16:10

  Had this happen to me in my own MKII, too much lube resulted in "caking" in the chamber, the round couldn't seat all the way in, and the extractor set off the primer.

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  SSG ZAG

  March 28, 2002 16:23

  See ruger Mark II problem 2 pages back.

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  jet

  March 28, 2002 17:33

  yellow jacket ammo ?

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