ToddKS
Gold $$ Contributor
Last night I was in the process of prepping some brass for my mighty 6.5 Creedmost and I noticed there was a flare at the case mouth on some of the cases after I ran the mandrel through. The flare was big enough that the neck would not go into my case trimmer.
I ran the brass back through my neck bushing die and it went away. Ran the mandrel through and it came back. This made it clear that I was moving a ring of material back an forth. It was not something caused by one of the dies. I got out my neck turner and turned the necks on the affected brass. It clearly removed a ring from the outside of the top of the case mouth. After that I ran a couple test pieces back through the dies and had no issues with the flaring.
Anyone else ever experience something like this? I have been loading rifle for over 10 years and this is the first time I have every seen this. The only thing I can think of is that this was caused by peening during the cleaning process (I tumble with Southern Shine chip media).
Brass is Lapua, Redding body and neck dies, 21st Century mandrel and die body.
I ran the brass back through my neck bushing die and it went away. Ran the mandrel through and it came back. This made it clear that I was moving a ring of material back an forth. It was not something caused by one of the dies. I got out my neck turner and turned the necks on the affected brass. It clearly removed a ring from the outside of the top of the case mouth. After that I ran a couple test pieces back through the dies and had no issues with the flaring.
Anyone else ever experience something like this? I have been loading rifle for over 10 years and this is the first time I have every seen this. The only thing I can think of is that this was caused by peening during the cleaning process (I tumble with Southern Shine chip media).
Brass is Lapua, Redding body and neck dies, 21st Century mandrel and die body.