For use with the RCBS Piggyback, Ammomaster and Pro2000 progressive presses only. Will not fit RCBS 4x4 press.
Press: RCBS Piggyback, AmmoMaster, Pro2000 Progressive Press Notes: Will not work with the RCBS 4x4 Progressive Press Fits:
221 Remington Fireball
222 Remington Magnum
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