I thought it looked like collet marks but I checked back and you said once fired so figured it had to be from chamber.
Thats fairly normal for a collet die and soft brass
Type: Posts; User: veitnamcam
I thought it looked like collet marks but I checked back and you said once fired so figured it had to be from chamber.
Thats fairly normal for a collet die and soft brass
Have a look at the chamber.