Factory or bad reloading?

[BIZERKO666]

I was going through some .223 range brass and came across about a dozen of these. All with R-P headstamps. To me it looks like someone got a little too generous with a crimp die. Never seen this before. I ran them through a resizing die for grits and shins. They looked a lot worse before this.

 

[EricBu]

There are a couple of mil spec producers that use a crimp like that...some so bad that the mouth cracks around the crimps.

 

[JmacD]

I’ve got some once fired RP 250-3000/250 savage brass that looks just like that. Fwiw…

 

[AJC1]

I thought it was the Lee collet neck sizing die doing that....

 

[EricBu]

I thought it was the Lee collet neck sizing die doing that....

That is the look. But Lee isn't the only collet crimp, and at least a couple of headstamps of military 5.56 that I've processed over the years uses a collet crimp.

 

[BIZERKO666]

I thought it was the Lee collet neck sizing die doing that....

That was my first thought. Regardless, these are going in the recycle bin.

 

[AJC1]

That is the look. But Lee isn't the only collet crimp, and at least a couple of headstamps of military 5.56 that I've processed over the years uses a collet crimp.

Just imagine how much fun neck turning would be.

 

[EricBu]

That was my first thought. Regardless, these are going in the recycle bin.

Meh, I trim mine to 1.745. Most mil brass seems to be right around 1.76, so 99% of the time, the bad crimp is removed by trimming. If you have a ton of brass, certainly toss it. If you are bulk processing, easier to just trim, then separate the goats from the sheep in final QA.

 

[EricBu]

Just imagine how much fun neck turning would be.

Pfftt. Trim and M die

 

[BIZERKO666]

Meh, I trim mine to 1.745. Most mil brass seems to be right around 1.76, so 99% of the time, the bad crimp is removed by trimming. If you have a ton of brass, certainly toss it. If you are bulk processing, easier to just trim, then separate the goats from the sheep in final QA.

I do have a lot of brass. These are pushing 1.764” and I usually trim to 1.750”. I’ll see what they look like after trimming. Not hard up for brass, just never saw such an aggressive crimp like this.

 

[Click_Here]

I use these with the R-P head stamp to make 300 blackout cases. Cut the bad over crimp out.

 

[BIZERKO666]

I use these with the R-P head stamp to make 300 blackout cases. Cut the bad over crimp out.

Good idea. I don’t load for 300 B/O (yet)
Maybe I’ll put them in a “save for later” container.

 

[JSneezy]

I use these with the R-P head stamp to make 300 blackout cases. Cut the bad over crimp out.

This is exactly what I would do. Cut them off, anneal them, and run them through the RCBS small base die. I've been considering doing it with some of my LC brass just because I have so much of it laying around.

 

[Varminterror]

Size and trim, it blows out flat after a few firings and all that remains is witness marks. Neck turning doesn’t even feel it, which is kinda the point of neck turning, it just cuts through and the crimp witness goes away.