help with why my brass wont work

[Scalce]

Originally Posted by Hoser

I think that is the first time I have ever heard the whisper as being described as having a steep shoulder.

I must be lucky, I have not had any issues forming brass from 221, 222, 223 and 5.56. I use the Redding dies and CH4D die for the Dillon trimmer.

Sorry I meant more sharp at the edge and not steep as in the angle.

Brainfart

What barrel do you have and what reamer was used on it?