Soot Covered Cases

[fx77]

I am now thankful for the input by those more experienced than am I,and convinced that low pressure and old brass are the culprits
Started with a low charge out of safety concerns, but the groups were so good, I stopped. Brass is old and thus the issue of the OP.

 

[fx77]

1.5 Thou

 

[fx77]

How much are you bumping them when re-sizing?

1.5 Thou