.22-250, .223 & .243 WSSMl Bump Gage Insert 28 Deg. Sinclair 749-011-472
Used to measure the amount of shoulder bump when setting up sizing die. Bump gage is the most accurate when used on the granite surface plate of our Ultimate Cartridge Check System. Recommended bump of .001 to .002 shoulder setback for bolt actin guns and .005 for Semi-Auto and other repeating actions. POST PAID.