Regular Nosler AccuBond HAS,.. good Penetration,.. but, a smallish, mushroom.
The Internally "explosive", Berger Classic Hunter's for,.. DRT !
I used BOTH Bullets on Elk, in my 270 WSM ( 270 WSM is close to the 6.5 PRC,.. in cartridge size and Velocity, w/ 140's )
The 140 gr. AccuBond at, 3,145 FPS was, a bit of, a slow killer, as, the Elk I shot, walked around, for a several Seconds, then, collapsed.
My 140 gr. Berger Classic Hunter at, 3,173 FPS,.. KaPow,.. Hooves, in Air !
Interior Organs, were "Mush" with, Small Exit hole by Base of Bullet, thru far side, Hide ( found it stuck, in Hair ) with, NO excessive, "Blood shot" Meat !
ALL of, the so called, "Nasty Fragments" were expended,.. IN the Organs and, did not stop, in the Meat !