Had and love the Standard NON-ai. Would never do one in AI.
Case stretch a non issue. Performance too similar IMHO.
Throat a Non-Ai for 250s to max case capacity and still touch lands if desired w/200-230s - those will do most anything asked of the 338 bore IMHO. 250 and heavier are fine also, but trajectory can be an issue.
IMR4320/WW cases/partial sized brass after simple neck up and firing worked great.
1/2MOA
2900+ w/200s
2790 w/215s
2670 w/225s
23" Hart
