How a McGowan 6BR barrel shoots after 3500 rounds
I got an 8 twist Mc Gowen bull barrel in 6BR for my Savage in 2014. I bought some Cerrosafe a month ago and did a chamber cast to check for throat erosion. There was a bit so I adjusted my seating depth to compensate. Following are some recent groups. The barrel has 3580 rounds through it. Both groups are five shots at 100 yards.
[IMG]http://i1233.photobucket.com/albums/...-16%20sm_1.png[/IMG]
[IMG]http://i1233.photobucket.com/albums/...05-16%20sm.png[/IMG]