Yesterday I was priming up some Blackout brass converted from .223. Everything was generally going well until a case launched out of my Bench Prime. The offending case had a WCC 05 headstamp (it somehow got primed though!). I put it to the side and kept on priming. Before too long I had the same problem again - also a WCC 05 case.
I checked the Bench Prime to make sure nothing was amiss there - it wasn't - then I went back to priming. That is, until the third case launched out of the shell holder. This one was a WCC 15.
I ended up going through all the brass I had ready to prime and pulled out all the WCC headstamps. Every single one of them was undersized at the rim! These all ended up in the trash.
Has anyone else had a problem with WCC brass being undersized? I'm sure I must have used some in the past but I can't ever recall an issue like this.
I checked the Bench Prime to make sure nothing was amiss there - it wasn't - then I went back to priming. That is, until the third case launched out of the shell holder. This one was a WCC 15.
I ended up going through all the brass I had ready to prime and pulled out all the WCC headstamps. Every single one of them was undersized at the rim! These all ended up in the trash.
Has anyone else had a problem with WCC brass being undersized? I'm sure I must have used some in the past but I can't ever recall an issue like this.