Good advice, until you consider that the 2 are usually the same load. Seriously, IME, loads which are hot generally are pushing the case head the hardest which is making the case fit the chamber in the most uniform way.
Now, there are over loads which accuracy turns south because the load starts doing something which moves the action/barrel out of alignment or some other issue. I'm not sure why, but overloads do start to have bad accuracy for some reason.
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