Re: Cut or Button, for LR.
It's throat erosion from heat/flame that kills a barrel. Not the rifling wearing out. So to me this arguement is irrelevant IMO.
leaving thorat erosion aside.... IF there is a difference in wear between a cut and button barrel, I don't believe you could ever see it in the normal "accuracy" life of a barrel anyway. It would show up well after the "peak" of a barrel. And in this game that barrel has probably already started collecting dust in the corner or has been designated a blow out barrel.
My $.02 worth.