Pacific Tool & Gauge .300 WSM - Chambering Finish Reamer
Chambering Reamers are available for every standard, custom, and foreign caliber. Chamber reamers are furnished in three basic sizes - Finish, resize, and rougher. Finish reamers are precisely ground to cut minimum size chambers and seating dies.
Neck Diameter: .346-.345
Note: Cannot be shipped outside of the United States.