There are a few Bucks rifles floating around with rifled bores. Not common at all though.
Regardless of the number of bands, when it comes to oct/rd barrels, it is very difficult to find modern made oct/rd barrels that look like antique oct/rd barrels. Pretty much all of the commercial makers are lathe cutting the bands and the transition between oct/rd is too deep and abrupt. The bands are too deep or bold. Practically every antique I have handled or seen utilizes a much more subtle transition and the band/bands are typically very shallow. Many, if not most, are around the top half of the barrel only, not completely around it as per a lathe cut band.