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257 Ackley Improved Full Length Sizing Die
91122
257 Roberts Ackley Improved Steel Full Length Sizing Die Complete.
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$23.00
257 Roberts / Ackley Imp LTD PROD QT Die
91357
257 Roberts or 257 Ackley Improved limited production quick trim die.
Use Quick Trim die in conjunction with the Deluxe Quick Trim Case Trimmer or Deluxe Power Quick Trim.
$20.00
257 Roberts Dies
From $20.00
257 Roberts Factory Crimp Die
90835
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Lee 257 Roberts & 257 Ackley Improved Factory Crimp Die crimps the bullet in place more firmly than any other tool. Tests demonstrate that even bullets which have no crimp groove will shoot more accurately. A firm crimp improves accuracy because pressure must build to a higher level before the bullet begins to move. This higher start pressure insures a more uniform pressure curve and less velocity variation.
$20.00