Keep in mind that Ackley’s original idea around the “Ackley Improved” concept was that the chamber be cut in such a way as to headspace on the shoulder of the parent cartridge. Therefore, an “AI” chamber cut properly will allow firing of both 338-06 A-Square & 338-06 AI cartridges.
The 35 Whelen brass idea posted above would remedy the problem of an AI chamber improperly cut, but shouldn’t be necessary if properly executed.
