A counterbore is when the rifling and part of the inner diameter of the bore is drilled out from the muzzle back far enough to get rid of boogered up rifling.The need for counterboring is caused by poor cleaning methods, ie: not using a rod guide. counterbore is when the rifling and part of the inner diameter of the bore is drilled out from the muzzle back far enough to get rid of boogered up rifling. The need for counterboring is caused by poor cleaning methods, ie: not using a rod guide.
Eileen Fisher - Highland Park 640 Central Avenue, Highland Park IL 60035 Phone Number: (847) 433-5440
TWO OPEN POSITIONS ON OUR PARKS BOARD. TWO OPEN POSITIONS ON OUR PARKS BOARD..... If you or anyone you know is interested please contact Town Hall for an application:) We are currently in the planning stages of our Fishing Derby and Riverfest!! Parks Board Meetings are held the second wednesday of the month at 6pm. Town Hall 410-482-6222.