What's up with this?

Poper · Sep 29, 2021

I am building a 6mm Creedmore on a Remington 788 action.
My 101 rounds of brass came yesterday. Tonight I decided to begin brass prep. Here is a before and after photo of a sized case. Before on the top, after on the bottom. What the heck?
This is a new one on me.

Sizing die is the Redding Type-S Match Bushing Full Die Set 6mm Creedmoor.
At first glance I would say the die was mis adjusted, but that is definitely not so. My second thought is that the new cases are misformed. But that doesn't look right either. Is it possible I have defective die?

eyeshot · Sep 29, 2021

So we are looking at the neck and shoulder. The reflection of the brass, on one another, had me looking elsewhere. Interesting.

JFrank · Sep 29, 2021

Looks like some brass I had when the expander ball was out of adjustment.

dcloco · Sep 29, 2021

WHOA!

With another case, blacken the case neck to shoulder junction and shoulder to wall junction with a sharpie (let the ink dry).

Back off the sizing die, turn in 1/2 turn at a time, and report back. Pictures would be great.

Down South · Sep 29, 2021

That die needs to be backed out some so the die neck doesn't hit the shoulder.
You should be able to fire form the case that the neck crushed on.

AJC1 · Sep 30, 2021

I was thinking maybe you got an AI die or something. If that's the third neck sizing only die back it way out.

Poper · Sep 30, 2021

Well, hell! THAT was an easy fix!
All I had to do was put a neck bushing in the die! :rofl:

DOH!!!
It's not like this is my first set of Redding bushing dies.....

Blackrock · Sep 30, 2021

Glad you got that one figured out. I'll be interested in how this rifle works out for you. I have a Rem 788 in 6mm Rem that is pretty much shot out after too many trips to the Dog towns. Been thinking about re-barreling it.

What's up with this?

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