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Thread: Ruptured 22LR case

  1. #1
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    Ruptured 22LR case

    I had taken my grand kid out plinking with a Ruger 10 22 I have had since 1979. We were shooting Winchester white box ammo and having to clear numerous double feeds. My grand daughter was shooting from a bench and I was standing to the left of the bench when when I felt something hit my forearm. I turned to look and she had pulled back from the gun and had this puzzled look on her face. I checked the gun and found a ruptured case wedged between the bolt and barrel. Checked the bore and we continued shooting.
    When I got home I cleaned the barrel and put a full magazine in it and with it on safe I began cycling the bolt by hand and had several double feeds. Clearing the last double feed and the case comes out with no bullet, it stayed in the chamber. I turned it muzzle up to see if it would fall out but it didn't so I used my air compressor blow gun to blow from the muzzle and it came out.
    Several months ago when I bought the ammo I noticed every bullet was loose enough in the case to be able to spin it in the case and wobble it back and forth. I sent an email to Winchester about it but never received a reply.
    Now what I believed happened is a bullet pulled from the case when clearing the double feed and she fire the next round with the bullet still in the barrel and cause an over pressure and ruptured the case.
    Needless to say the remaining rounds will be deep sixed. Has anyone ever seen anything like this before.

    Last edited by P2Vaircrewman; 08-30-19 at 18:50.

  2. #2
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    The bullet spin isn't unusual. Google .22 lr bullet loose in case.

    My guess is it fired the cartridge without the bolt fully closed. Not sure if a 10/22 can drop the hammer with the bolt back (Atchisson Ceiner conversion bolts can) or if it popped the primer during feeding.

  3. #3
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    What you're calling double feeds is more likely extraction failure. Scrub the chamber well with Hoppe's and a brass brush.

  4. #4
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    Quote Originally Posted by P2Vaircrewman View Post
    When I got home I cleaned the barrel and put a full magazine in it and with it on safe I began cycling the bolt by hand and had several double feeds.
    First, invest in some snap-caps... They're cheap.

    Second, AFAIK, Winchester rimfire is crap. Their 17HMR is famously bad. I wouldn't ever buy Winchester .22lr...

  5. #5
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    I am surprised at the lack of response from Winchester on this. I had a pack of Federal .22LR that had a few squib rounds in it, including one that stuck in the barrel. I emailed Federal about the problem and they responded quickly. They sent me a shipping label and had the box picked up at my house and also sent me a refund to buy a new box of ammo. I would have thought Winchester would have similar service.
    Psalm 34:19

    To argue with a person who renounced the use of reason is like administering medicine to the dead. ~ Thomas Paine

  6. #6
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    Quote Originally Posted by Bimmer View Post
    First, invest in some snap-caps... They're cheap.

    Second, AFAIK, Winchester rimfire is crap. Their 17HMR is famously bad. I wouldn't ever buy Winchester .22lr...
    I was using live rounds because they were what was causing the problem and I was trying to figure out why by inspecting them for damage after ejection. It was on safe and pointed in a safe direction.

  7. #7
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    Quote Originally Posted by P2Vaircrewman View Post
    I was using live rounds because they were what was causing the problem and I was trying to figure out why by inspecting them for damage after ejection. It was on safe and pointed in a safe direction.
    Safe direction works, but the primer in a rimfire is getting smacked around a lot during the feed cycle so there is a chance of it detonating from that. Similar in concept to free floating firing pins detonating center fire primers.

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