It doesn't really help you think about what's accurate. Barrel time is theoretically useful, but is no substitute for a velocity ladder followed by a seating depth ladder.

I would look at slower powders in the same series from ADI - so for example H4831 or H4831ssc.

Of course your problem with Hunter might have been seating depth or not being on a velocity node, in which case just switching powders isn't necessarily going to help.