I have a BAR in 30-06 and wouldn't trade it for anything. I absolutely love it. But it doesn't group real tight. It does have the BOSS technology but to be honest, I have never actually tried dialing in my load. I am planning to do that this next year though. But since it is a hunting gun, it only has to be minute-of-deer. I have had it for 15 years or so and have no plans to get rid of it. May have another gun one day, but will not be getting rid of this one to do it.
My brother had a Remington 7400 (or was it a 7600?). Anyway, it was a Rem semi-auto and it would shoot tighter than my gun. He didn't use it much and has since sold it as he doesn't hunt now.
As for hunting with it, me and Mr. BAR have a special relationship. I point him at game and he knocks them down.

Something about the gun, the fit, how it points, etc, but I just seem to be a pretty good shot with it even at moving deer and coyotes. And I don't target shoot much, so it must be the gun.