Sinclair International ( Brownells) Wilson Micrometer Seater Top for Standard Seater Die

The Sinclair Micrometer Top allows the hand-loader to convert existing Wilson Standard Chamber Seaters to micrometer seaters. The top is constructed of stainless steel and is graduated in increments of .001 inch. To use, remove the existing seating stem (aka seating drift) from your Wilson Seater cap, and install in the Sinclair Micrometer Top. We have Wilson VLD seater drift available in common calibers.