On most improved cartridges, you can start with a mid-range load of the parent cartridge (in this case a 30-06) and start cautiously working your way up. You will probably be able to go approximately 5 to 7% above the parent cartridge loading.
I have a 30-06 Ackley Improved, but I can’t find any loading information for it.
Sierra Bullets > FAQs > I have a 30-06 Ackley Improved, but I can’t find any loading information for it.