The 6.5 120 is pretty stout. The couple I've seen recovered were on angling shots, and were classic mushrooms. One of them went through a pronghorn buck's shoulder during it's journey.
I told my contact at Nosler about my experience and he found it very interesting--and brought up the new 6.5mm E-Tip. The fastest velocity listed for the 120 in their manual is a little over 3300 (.264 Winchester) so I don't think they've ever pushed it to 3500+--and the velocity in my rifle was above 3550.
