280 RCBS
The 280 RCBS is basically the Fred Huntington version of the 280 Ackley Improved, but with a 30° shoulder, whereas the 280 Ackley has a 40° shoulder.
The 280 RCBS is basically the Fred Huntington version of the 280 Ackley Improved, but with a 30° shoulder, whereas the 280 Ackley has a 40° shoulder.