Hornady .284 Bushing/Caliber Insert for Match Grade Sizing Die

Hornady .284 bushing/caliber insert for match grade resizing die
Caliber insert for match grade full or neck resizing die. Made of hardened steel (identical to Redding and RCBS). Procedure for selecting the appropriate insert: Measure the neck diameter of a finished loaded cartridge and subtract 0.002"-0.003" from that measurement (thickness of the case material). This should then yield a measurement with which one can find a suitable bushing.