308 cal bullet

Anyone looking for Sierra .308 / 30 168 Grain Hollow Point Boat Tail MatchKing 500ct

Hi, Does anyone know what the heaviest, highest bc 30 cal bullet that will stabilize in a 11.25 is? Altitude is 2500 DA is usually 2500-4500 in the summer. Match bullet suggestions are fine. I’ve alread tried the 208eldm, but it destabilizes after 400 yards. Looking for other suggestions