There should be no problem with the AI change. You are still in the same pressure curve. You will gain about 4 grains of powder space for about 100fps. I stand amazed at how many people underestimate the 30/30. I have seen 250 yard one shot kills, on deer, more than once. The cartridge is more than adequate! It might not blast holes all the way through at that distance, but if it is placed in the boiler it is a done deal. I would also not want to ruin the value of a 30/30 over 12 gauge mod 24. They are few and far in-between, and they command a large price; well over $650.00 in fair condition.

Best regards,
Grit