Avoid the 168 SMK for precision rifle competition. It'll almost always tumble, or at least dispersion will increase significantly, before 1,000 yards. It's not worth your time; it was designed as a 600-yard bullet, and that's what it's very good at.
I have some 175s on the way to play with. Local matches are 600 bench matches for score. With the exception of K&M Shooting Complex, PRS type matches are few and far between around here currently but that is the ultimate plan.
It is funny you mention the dispersion, the factory stuff shoots great to 500 and always opens up at 600.
