My concern is this, what if you see the bull of a lifetime, he is moving through quick. The only shot you have is 500 yards quartering hard to you. Don't ask why that would be your only shot as it probably wouldn't be the case but just hypothetical here. Your only shot is through that hard shoulder to the vitals. Could a 6mm bonded or monometal bullet do the job, maybe and likely has for some foljs here. But man I sure would feel better with that 175 Nosler accubond smashing right through that tough muscle and bone. I am sure the 6mm kills great but through bone and muscle I would feel better with something heavier. But then again, I am the 7mm man so I am biased.
I am going to have to check out those DTAC nosering bullets though for some local Whitetails.