Expander Mandrel Kit (Caliber Specific)

Caliber Specific Expander Mandrel

Our caliber specific expander mandrels are available in .0005” increments in calibers 22 to 338 and will range from .001” above bullet diameter to at least .003” below bullet diameter depending on caliber. This will allow the reloader to find proper neck tension to fine-tune their loads. The oversized expanders will also help straighten necks prior to sizing to improve concentricity. We recommend our Moly Dry Neck Lube for use with our expander mandrels

Expander Die Bodies sold separately.

21st Century Expander Mandrels and Arbors are designed for proper fit in our die bodies. While these may work in most Sinclair and PMA die bodies we cannot guarantee proper fitment in those bodies.

Machined to hold a tolerance of +/_ .0002″

*PLEASE USE MICROMETERS TO MEASURE

Kits include:
20 Cal Kit – .200, .2005, .201, .2015, .202, .2025, .203, .2035, .204, .2045, .205
22 Cal Kit – .221, .2215, .222, .2225, .223, .2235, .224, .2245, .225
6mm Kit – .240, .2405, .241, .2415, .242, .2425, .243, .2435, .244, .2445, .245
25 Cal Kit – .254, .2545, .255, .2555, .256, .2565, .257, .2575, .258
6.5mm Kit – .260, .2605, .261, .2615, .262, .2625, .263, .2635, .264, .2645, .265
27 Cal Kit – .274, .2745, .275, .2755, .276, .2765, .277, .2775, .278
7mm Kit – .281, .2815, .282, .2825, .283, .2835, .284, .2845, .285
30 Cal Kit – .304, .3045, .305, .3055, .306, .3065, .307, .3075, .308, .3085, .309
33 Cal Kit – .334, .3345, .335, .3355, .336, .3365, .337, .3375, .338, .3385, .339