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Misfired Primers

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Old 12-27-2009, 09:20 PM
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Misfired Primers

Something got me puzzled at the range today, it was nice sunny day about 40 F no wind, during my shooting session I got 3 rounds which failed to fire and 2 which fired on the second or 3rd strike, for all of this rounds which I fired today I used Winchester Large Rifle primers which I had used for a few months now but never had misfires like I had today. Another thing I used 2 different riffles one for .308 win another for 270 win and misfires happened on both. Something is not right it almost like I got my rifles jinxed
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Old 12-27-2009, 09:28 PM
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Location: Townsend, Montana.
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Re: Misfired Primers

Not just you. I had some WLR's I just recently bought do the same thing to me while working up a load for a friend in a 30-06. Plus I have had a few pierce in my 22-250 with a proven load that is not over pressure. I think they might have had an issure with a varrying skin thickness. As soon as I use these up I am done with them. And I have used them for years.

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Old 12-27-2009, 09:29 PM
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Re: Misfired Primers

Not sure how you cleaned them. Did you tumble them in media? maybe some media was stuck down inside the cases. Doubt it's something like a weakened spring especially since you used 2 different guns. Let us know what you found.
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Old 12-27-2009, 09:35 PM
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Re: Misfired Primers

A friend of mine had this same thing happen recently and they were Winchester primers as well. He now only uses them for fouling shots and break in stuff.
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Old 12-27-2009, 09:55 PM
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Re: Misfired Primers

The only difference in my recent loads, I used George & Roys custom primer sealant and I used it on the sides of the primer pockets I thought I'll get better seal this way, it could have gone on the primer itself, I'm going to pull bullets out of the cases now and inspect them.
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Old 12-27-2009, 10:14 PM
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Re: Misfired Primers

Just pulled the bullet out and got all of the powder out there is on grain of powder stuck in the flash hole, but primer never fired

In the second case it's fresh virgin brass nothing in the flash hole and primer never ignited, however all of them had deep punch marks...

Last edited by Jinx-); 12-27-2009 at 10:29 PM.
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Old 12-27-2009, 10:34 PM
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Location: 4422′44″N 1082′35″W
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Re: Misfired Primers

Sounds to me like Winchester is having some problems with their production line somewhere or even QA maybe. I would probably throw out all the primers from that lot# and buy another batch if all your loads are worked up with those primers. if switching brands isnt a big deal to you I would just switch to whatever you can find. I use federalsand have never had a misfire that I can remember

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