I have used both the 140 G NoslerBT,s and the 140 G Nosler Accubonds in My 7 Mil Mag at about the same velocities and they both do a lot of damage. I have taken 5 deerthis year with these two combinations just to see the differance. Not to mention I love deer meat!! The first two with the BT,s 2 inch exit woulnds, no tracking needed. The last three with the Accubonds, sholder shots. The accubonds only leave an exit woulnd about one inch but completely destroyed both sholders on two of the deer. I mean ground meat full of bone fragments!Next Year I am going to go with the partitions that I have worked up. Al though dead is dead We will see what hapens with the partitions.I am hoping to grind the meat with the meat grinder next year !!