Ackley Improved Cases
Posted by on 13 August 2015 03:17 PM

The standard Collet die for the parent cartridge should work, provided that the base to neck/shoulder intersection dimension has not changed. Most Ackley Improved cartridges have less body taper, and a steeper shoulder angle, but the distance from the base of the case to the neck/shoulder intersection is not changed. There is enough clearance in the collet to accommodate the improved cartridge.