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Old December 19, 2012, 09:39 AM   #1
rebs
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winchester crimped 223 ?

Is the Winchester crimped 223 rounds made to any mil=spec ?
Are they any better or worse for reloading than the Lake City brass ?
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Old December 20, 2012, 05:10 PM   #2
PA-Joe
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All manufacturers crimp their brass. You shouldn't have any problems with it.
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Old December 20, 2012, 08:39 PM   #3
rebs
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My mistake for not saying I meant crimped primers
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Old December 20, 2012, 11:01 PM   #4
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I think LC is the most consistent brass out there. Winchester is OK but it's not LC. It's made to SAAMI specs, not milspec.
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Old December 21, 2012, 01:42 PM   #5
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If brass is made to mil spec, by definition it will have the military style initial and year of manufacture code stamped into the head.
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Last edited by Unclenick; December 21, 2012 at 01:54 PM.
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Old December 21, 2012, 01:55 PM   #6
rebs
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Thank you. Why does Winchester 223 brass without the symbol or year date have a crimped primer ?
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Old December 21, 2012, 02:10 PM   #7
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Several folks have commented on finding factory ammo with crimped primers more recently. The reason the military started crimping them is the loose chambers in some machine guns coupled with increased pressure due to barrel heat would cause primer pockets to expand come loose from time to time and fall out of the case and into the mechanism. That would jam the gun. So, possibly the maker is figuring they'll be fired in a loose chambered semi-auto or one that heats up and raises pressure and they want to prevent that from popping the primers out.

I suppose it might also be that the new lot of brass is on the soft side and had the problem of primers pockets getting loose, so they decided to crimp it. If that's the issue you'll find out soon enough because it won't last many load cycles.
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