I think I'd ask to see the other side of the barrel. Maybe it was cut down. If so, maybe it cut off part of the warning.
Otherwise, I wasn't aware the Redhawk came in a four inch barrel.
But then again, I didn't know the Colt Python was manufactured with a three inch barrel, either. Till I told somebody on THR it wasn't. Then half THR members came out and said........WRONG!