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
Clerk: Christine Ermis 715-851-2777 christine.ermis1980@gmail.com. If you need to REPORT A TREE DOWN, please contact Road Superintendent, John VandenLangenberg at 715-276-3769, if you still need assistance, you can call Chairman Dick Kendall or Supervisor Bob Gaie at the above numbers.