Description
One 257 WBY Blackjack Spec Chambering Reamer (Dave Manson – Live Pilot – 0.131″ Freebore – 0.289″ Neck).
This reamer is a “No Neck-Turn” reamer to be used with 257 WBY brass and standard dies. A 6.5 VLD seating stem may be required for your seating dies.