I would tend to agree, especially with the muzzle velocity part. I didn't Chronograph them, but I can't imagine those 100 grain Barnes leaving the 21" barrel of my Roberts faster than about 2,800 fps based on the load I was using, not exactly hyper-speed. I am going to assume it did expand, just not in a dramatic fashion as do the Ballistic Tip. Based on my experiences with a 250-3000 I have used for a few years, had I been using the 100 grain NBT, that deer would have dropped where it stood.
Though on the other end of the scale, I wouldn't want to be hunting Elk, Moose, or Griz with a standard cup-and-core Ballistic Tip. I'm sure it has been done, but I would probably move up to something bonded such as the Accubond or as you mentioned, the copper E-Tip. Perhaps that is where the all copper Barnes would shine.
