Mighty Armory .300 Blackout Expander Mandrel Shaft
$26.00
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.300 Blackout drop-in Expander Mandrel Shaft with pin threads. Ensures consistent and even case neck expansion. For use with the .300 Blackout Gold Match Sizing Decapping Die for one-and-done sizing. Mighty Armory Decapping Pins are sold separately: Decapping Pins “Get Tough Stay Mighty” "World's Toughest" Reloading Dies Precision Reloading Tools Made in the USA Mighty Armory
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