Thread: 223 vs 5.56
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Old February 8, 2014, 04:06 PM   #34
trigger643
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Join Date: April 22, 2011
Posts: 322
I had never experienced any problem shooting 5.56 out of a .223. This was limited to Remingtons, Savages and Winchesters firing Lake City 193 and 855. Sure, I read the "don't shoot 5.56 out of .223" but I'd ignored it.

...and I still ignore it for the most part.

A few years back Bushmaster built a batch of AR rifles marked .223. I ignored it.

Here are the results. On the left is Lake City 855 fired from the Bushmaster. On the Right is the same ammunition fired from a Colt 601.

A few minutes with a 5.56 chamber reamer and no more blown primers.

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