With the Whidden Gunworks Universal Click Adjustable Lock Ring you can instantly turn your sizer die into a Click Adjustable Die. This ring works with any 7/8 OD sizer of any brand with adjustable shoulder bump. Simple in design the inner and outer ring can rotate independently of each other. Each click is metered in true 1 thousandths of an inch adjustment and has .100'' total available travel. Those loading for two rifles with different headspace can easily optimize the shoulder bump for each rifle. All Whidden Gunworks Seater dies are Micrometer Adjustable however other Seaters that are not micrometer adjustable will benefit from this lock ring's adjustable design. Even the simplest seater dies are now easy to adjust for different bullets or easily adjusted for testing different seating depths.