You can do a search on here and find all kinds of information on the BAR. It's really about been chewed to death. The long and short of it is most people have good opinions and there are a few that have had problems.
I fall into the "problems" category. I bought a brand new Safari grade in .25-06 and I had SERIOUS accuracy problems with it. It wouldn't group at all. It would be on one side of the paper one shot and the total opposite the next shot. I went out and bought a lead sled thinking it was shooter-related. Still did the same thing. I ended up selling it for a song to a buddy who said he could fix it. He's still having problems. It was a beautiful rifle, but for me I don't care how pretty it is. If it won't shoot like it's supposed to, I won't keep it.