21st Century - Expander Mandrels (Stainless Steel) Size:0.2215 003” below your desired final

003” below your desired final bullet tension size

All Redding dies use the industry standard 7/8-14 threaded bodies

Water resistance - 0

without causing extensive barrel fouling

21st Century - Expander Mandrels (Stainless Steel) Size:0.2215 003” below your desired final21st Century Innovation Expander Mandrels when used with the Expander Die Body will expand the case neck for proper fit on the turning arbor. Precision CNC machined from high grade stainless steel. 21st Century Expander Mandrels and Arbors are designed for proper fit in the 21st Century die bodies. While these may work in most Sinclair and PMA die bodies we cannot guarantee proper fitment in those bodies. These are sized . 0008" (+ . 0002") below