21st Century - Expander Mandrels (Stainless Steel) Size:0.2550 The key features of the

The key features of the second generation hardware include:

Eliminates much of the trial and error that was once associated with seating accurate rounds

Very rounded blunt bullets will be difficult and extremely long pointy secant bullets like Hornady ELD's etc can leave a ring on the projectile

which make handloading a snap and create an incredibly sleek form factor

it stays exactly where you put it

21st Century - Expander Mandrels (Stainless Steel) Size:0.2550 The key features of the21st 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