LC 5.56 brass trouble

[Gary in MD]

I have a bag (250 count) of LC 5.56 brass that I just recently decided to mess with. I’m not sure how long ago that I bought this brass or where I bought it. It appears to be brand new or just really clean. I was going to fire form some of it in my little Cooper 223ai but when I seated the primers… they basically fell in. I tried CCI 400 & 450s and they just drop in.
I probably won’t try these in that Cooper but I’m thinking of using them in my AR and just leaving the brass on the ground. This is the first time in about 40 years of loading that I’ve seen this, I’ve thrown away brass with tighter pockets than this.
Any thoughts? Can I damage the bolt face of the AR doing this?
Has anyone else experienced this with the LC brass?
Thanks in advance for any experienced replies
Gary

 

[williepete]

Gary if the primer pockets are that loose and you get blow by around the primers
It will act like a blow torch and defiantly kill your bolt face.

 

[SecondsCount]

I'm typically one to shoot every bit of life out of a piece of brass but I would hesitate on using those. My guess is someone fired them with a hot load, polished them up, and sold them.

The big problem with shooting those in an AR is upon extraction, the primer could fall out and down into the trigger group, jamming things up.

LC brass is cheap and plentiful. My recommendation is to scrap and buy new.

 

[jpx2rk]

If you have a Ballistic Tool primer pocket go/no go gage, you can check them all in a matter of minutes, but if the primers will almost fall out, I would trash them quickly. Bolts can get expensive to replace.

 

[Doug Casner]

When I ran heading at lake city there was a part called a bunter that made the primer pocket. We had to put them in a lapping head and work some of them down, They were too big made the primer pocket loose. There was enough waterproffing in the pocket to make it work. They would rather have them a little loose than too tight. That was in the dark ages I dont know how they make them now. Doug

 

[Liven The Dream]

May have been cut to remove Crimp ?

 

[markm87]

Probably a booger eater with a super swager. Pitch them. Popped primers in ARs are annoying. They only go bad places... The gas key, the fire control group, etc.

 

[Gary in MD]

I'm thinking that just tossing them in the recycling box might be the best bet...
That's probably the advice that I would give out
Gary