What AICS Magazine will work with 30 Nosler?

Factory ammo? Handloads with a long throat chamber? I'd get some CIP length mags that are 3.850 lemgth, 3.750ish internal. Will give you room to mess around. The other option is the unknown munitions m5 dbm and their long cip mag that has 3.800 internal. They also offer an XL mag with 3.950 internal but this is more suited to a RUM based cartridge.

AICS 338 CIP is what I use.