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What are these impressions on my once fired 5.56 brass?

Kentos

B&B's Dr. Doolittle.
Staff member
Just got a batch of once fired brass, and after tumbling I noticed these marks on the neck. What are they from, and are these cases ok to reload? Thanks in advance! My google searches turned up nada. I assume they are a form of bullet crimp?

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Kentos

B&B's Dr. Doolittle.
Staff member
Ok, so I finally found something that confirms it is indeed the bullet crimp. Can I reload these?
 
Yep, that's just a crimp. Run em through the sizer die and reload at will. In my (somewhat limited) experience they don't affect the process or load. I have 4 reloads on Winchester brass with that same crimp in 300wsm no problems yet.
 

Kentos

B&B's Dr. Doolittle.
Staff member
Thank you Brother! After a few trims it might be gone too :)
 
Reload away! If they are not factory loads (a gold colored primer) check the overall length just to be sure.
 
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