I got my BA barrel. I haven't had the chance to shoot it yet. Against my better judgment (I thought) I looked at it with a bore scope and now I'm glad I did.
First of all, it looks really good for an inexpensive barrel, at least in my opinion. I've seen much worse. It's a Premium Series barrel, stainless, and the web pages says “Our Premium Series 6.5 Creedmoor Barrels are proof fired and MPI tested...” The reason why I'm glad I did bore scope it before shooting is I found heavy copper deposits. I think heavier than I've seen in any barrels new or used. The deposits are about in the middle of the barrel and about an inch inside the muzzle On top of the lands only, not in the grooves. Again, the deposits were really thick, heavy. It is not like the little bit of copper sometimes left by the button rifling process. Also copper up in the gas port. The port looks nice, with no burr or anything.
Looking at the throat it does look like the barrel had been fired as down in the grooves the steel is darkened a little but the throat looks pristine other than that. So I think it must have not been fired much at all. I don't understand why the heavy copper. As I clean away the copper the underlying lands do not appear to be rough at all.
I've been working on removing the copper over several days. I've been soaking with Hoppe's No.9 for 6 to 8 hours or over night then brushing and patching. Copper is gradually coming out. Trying to speed it up I bought some Hoppe's Black Copper Cleaner which was the only copper remover I could find locally. It doesn't seem to have any effect at all. The No. 9 works faster.
edited to clarify, the copper is in the middle of the bore two or three inches in length and about an inch inside the muzzle for a length of about an inch or an inch and a half.