The Briley thin walls I have had were not notched..not sure if that is true for all their thin walls. The choke was imprinted on the tube….Along with the choke Series.
In addition to the threading….the chokes have to match up with the barrel inside diameter. If not a choke could be ripped out of the barrel. Which usually will result in a reined barrel.
Last edited by battue; 09/01/21.
