Criterion or not, I'm still guessing that it's a darn fine barrel. Just because it's button rifled doesn't mean it's crap. If I'm not mistaken, Shilen, Hart and Lilja all button rifle their barrels, and I don't think anyone can make a rational case that they aren't top notch barrels. I seriously doubt that Krieger would put their name on them if they were sub-standard in any way.

Mike