Shot my brand new flat top.
Loads were 200gr .452 SNS poly coated cast on top of 6.6 and 7.0 of HP-38. New Winchester brass.
The cases were almost completely black.
I have shot these loads in a couple of Uberti 1873's and never noticed this
Ideas?
Can my chambers be really bad oversized?
Not the throats but chambers.
The throats are under sized at .449