6.5mm 120 Nosler Ballistic Tip at 2600-2800fps from the 260 kills deer quite dead in my experience. Never seen "bullet exploding" as some have reported, but I also don't run max velocities from my hunting rifles.

Don't think one can apples-to-apples compare a Core-Lokt bullet with a Ballistic Tip in terms of terminal effects, though a 140 Core-Lokt should have little problem penetrating a whitetail shoulder at 215yd given its velocity and sectional density.

Good options other than the 120 NBT are the 130 Accubond, 125/140 Partition, 130/140 Berger Hunting VLD, 140 Sierra Gameking, 130 Swift Scirocco, and 120/130 Barnes TSX or 120 TTSX.