I've used them since they first became available and have had nothing but excellent terminal performance. While differences in ogive can be noted from lot to lot, I have not noticed anything different in terms of changes with terminal performance between the early releases and the bullets from current production runs. . Here's a 6.5mm 130 grain AB taken from a quartering shot on a large hog. This pretty much typifies the bullet's performance -- at least in my usage. I've used the 130 grain 6.5 AB on everything from vermin and varmints to coyotes, bobcats and quite a few hogs.
I've also used the 7mm 140s and the 125 and 150 grain offerings in .30 caliber, all with similar results.
7mm 140s:
.30 cal 125 taken from a large hog
A hard quartering presentation on another boar produced this .30 cal/150 AB recovery...
Since someone mentioned the 129 grain Longe Range AB, here is one recovered with an impact of app. 2300 fps. Designed to expand to much lower velocities, it obviously sheds more of its weight and length than the conventional Accubonds given similar speeds and medium.