DF I think the cartridge will be pretty cool for the guys who want lots of speed in 6.5...seems McWhorter rifles are selling a pretty fair number of the wildcat 6.5 Weatherby and this 26 Nosler should be about the same thing.
It may not be the ticket for those shooting lots of rounds; I would want something smaller myself for volume target work...but for moving mono's fast (how they work best)it should be a beast.
...and if there is anything better in terms of flight with High BC bullets at modest velocities, it's high BC bullets at high velocities(assuming they can handle the heat.