H'J,
I've only shot 3 55gr'ers out of the Savage, VMAX, Nosler Ballistic Tip, and Midway Dogtown, and none were FMJ or HP .All were with neck sized cases, powders were Re15, H4198, H322.
All shot very well, some MOA @100 with all 3 ,the largest being 1 1/2" or there abouts and would probably shot a lot tighter with someone else doing the trigger work. H4198 worked the best with all and RE15 and H332 were a tie.
I your query is based on the 1 in 9 twist being to fast for the lighter shorter bullets, I have shot the tightest groupings with 40 gr Vmax and RE10, and for giggles I even shot some 35 gr Vmax and they didn't do to bad. So I really don't think you could over spin a FMJ or a HP if the hollow point was a match HP and not a thin jacket prairie dog bomb.