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Casing Dents on 5.56 M855

Jeff3C

Private
Full Member
Minuteman
Jul 14, 2009
71
0
38
Oklahoma
I bought 1000 rds of 5.56 M855 on stripper clips. I would say about 50 rds have small dents in the casing around the shoulder. Is it OK to shoot these or should I toss them out?
 
Re: Casing Dents on 5.56 M855

Look inside the dent area itself. If you can see a sharp corner or sharp crease in the bottom of the dent, lay them out. Otherwise enjoy. As long as the metal in the cartridge case isn't weakened by a sharp crease, you should be good to go.

If you have any doubts in your mind look for the worst one of the lot. Then examine it really close. Put it in the rifle, put on your safety glasses and ear protection and pull the trigger. If the one with the largest dent makes it OK, the others should be fine.

Usually the dents are just where they have come out of the machine and hit each other. 99.9% of the time they are fine. Especially US manufacture.
 
Re: Casing Dents on 5.56 M855

just take the worst three and put alittle pistol powder and a papper plug and fire them.if the dent go's away with no other signs you should be OK.and what Victor said.