Re: Looking for a POF 6.8 spc
I helped with a T&E on the 6.8spc, including Barrett (REC7 piston), RRA, Wilson C, Addax Tactical, and DD. Believe it or not with the 85gr SSA Barnes bullet, the RRA was more accurate out to 500 than the Barrett. #1 was very close but Addax Tactical edged out Wilson Combat at more distance, but both shot great, with 3000fps being the norm on the 18" brrls. And the DD was the lightest most versatile one, but it was a 1/10 twist like the RRA. I think DI, and piston have their places, but the DI seemed more accurate.
BTW I use an RRA for Deer hunting, and from 300 inside, they make a good whitetail gun.