I have been hunting with a 6.8 for several years now
killled a lot of hogs and deer with one
my preferred load is a Barnes 95 TTSX
Never lost anything I have put the crosshairs on and they are just as dead, just as quick as if i used my 308, 270, etc.
If I am after a trophy buck and expect to have over 300 yard shots, I grab my 308, but 99% of the time, I grab the 6.8
It's very accurate, light, and just a lot of fun
I alternate between an Aimpoint T1 and an Accupoint 3-9 both on QR mounts