Re: 280 AI with 180gr bullets?
Simply use load data for the standard 280 Rem using a 175 gr bullet. In a 280 AI this will be plenty mild even with the extra 5 grains of bullet weight. Work up from there watching for the normal pressure signs.
Personally, I think the 280 AI is better served with a 160 to 169.5 gr class bullet but that is just my personal opinion. With some of the new VLD and ULD designed bullet out there in this weight range, there is really no need for more bullet weight unless your doing the EXTREME range thing.
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