223 resizing issue

It's build up in the neck area of the die. What kind of build up? Likely a mix of brass and carbon. Annealing cases seems to make it worse. My RCBS 223 die does it too. There are numberous threads here and on other sites in recent years about this.

Resolve it by running a tight copper bore brush thru the neck of the die. Chuck the brush in a cordless drill, wrap some steel wool in the brush, go to town.

Rub your cleaned case necks with steel wool, and lube your necks before sizing. It will build up on the die again anyways, but won't get bad if you stay on top of it.
 
Brass was lubed, vent hole is open. Not new dies, they have worked great in the past but have sat for probably 6 years, unused. The carbon build up makes sense given the length of time they have sat. I will clean them more thoroughly and see if that helps.

Thanks for the responses.
 
I had that happen on a rifle die but I don'' remember which one. I figured that a bit of metal filing had gotten embedded in the die. If that's even possible.

Send it back to RCBS along with that picture and you can be sure they will take care of the problem.
 
I'd call them first. RCBS is very easy to work with. They might just send you a new die and not even mess with sending the old one in. Just a guess but its only a phone call to find out.
 
Try using Hornady 1 shot.

I use rubber gloves and a ventilator.

Cases go smooth as hot butter into dies.

If you don't use H1Shot, try another lube method, or more lube.

If that die worked good years ago, in theory, it should still work fine.
 
more lube is not always the answer, and may in fact cause more problems than its worth.. (hydraulic dimpling is just one example)


Properly applied - both in coverage and quantity - is the only solution for lubrications, no matter the method or product you choose. Follow the instructions on the package for best results.


that said i like Hornady's one shot as its basically impossible to over lube with, and a s long as you follow the instructions, apply it liberally and allow it to dry before attempting to resize with it it works quite well. Spray, shake, spray, shake, spray, shake, dry, resize.

even applying what will probbly feel like "too much" i yield thousands (4000 or so 223, 300 blk, etc) of cases out of a single spray can of it.

hth
 
Originally Posted By: DennyrHad that happen also. 223 RCBS die. They asked for a damaged case and the die. They repaired at no charge.

This is the same response RCBS gave me. They said I'd probably never be able to get the embedded brass out of the die on my own. The gentleman said that in most cases they cannot either and they typically just send a new die.
 
if any of your mixed brass was nickel plated it could be small chops of nickel plating scratching the brass. I've had that happen with hornet brass.
 
Experienced the same with a .223 die and a .308 dies, both heavily used and both RCBS.

RCBS exchanged the .223 die whereas a few years later they honed and returned the .308 die.

Perhaps they try cleaning up the sent in die and go from there?
 


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