Lets see hear all AI rounds 17 hornet, 22 hornet,20-223, 223, 22-250, 243, 25-06, 280 I think that is all of them. Tim
No, you can turn just about any cartridge to Ackley improved. As long as it had less than a 40 degree shoulder to start with, you just rechamber with a 40 degree shoulder and it becomes Ackley Improved. The funniest Ackley has got to be the .22 Eargesplitten Loudenboomer (.22-378AI :eek.