Not contradicting Jack and the excellent results that Drumie has with a 7T , 24" barrel with the 85.5 Bergers, but I would opt for the 6.5T just in case you settle on the 88 ELDM (or higher weight bullet) or can't get the 85.5s because a 7T will, according to the Berger SG calculator and confirmed by the SG factor given in my Strelok Pro app, only achieve marginal stability: that is something less than 1.5. Your odds improve with warmer weather but shooting in the 40-50s and just about sea level here on the east coast, the 6.5T is a plus. Nothing wrong with more twist IMO.
Good luck with the V. It's a great round - I've been with it for four years and use it in competition. Don't have bolt gun yet, just gassers.