While I load 6 'cats and enjoy doing so AI ing a round only makes sense if the powder that would achieve the best performance cannot be maxed out in the parent case AND it would only take a grain or two more to do so. If you're not going to abosolutely fill the case and need more room, then AI ing makes no sense at all. Plus, in the subject cartridge a 1.5 grain increase in powder (about what can expect) will safely generate less than 180 fps in velocity, assuming the parent cartridge hits 2750. (Velocity increases at one fourth the percentage of increased powder at best. Depending on how tight the chamber/barrel is, it could actually be less than the original chambering). Hardly seems worth all the trouble and expense if the need is more speed. BUT if you want something different from the rest of the pack, and won't be disappointed with the slight increase in performance - and the resultant devaluation of your gun - then by all means go for it.
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