They are for the choke wrench most likely. Choke markings are usually on the body of the tube.
Follow manufacturer's instructions.
No. A choke tube slips into and screws to the muzzle end of the barrel. It can only decrease the inside diameter.
Possible, but, not recommended.
Should have choke tubes, being that you can change it to whatever choke you want, so there would be no marking on the gun. There would be markings on the end of the choke tube though, usually between 1-5 lines. Not positive on which means what, but I believe the higher the number the tighter the pattern. But take that with a grain of salt.
Never fire a shotgun without a choke tube installed. DANGER, DANGER, DANGER
the markings on the out side edge of choke tube, one line is full choke,3 lines are modified choke and 4 lines are imp cyl choke,thats what they told me when i bought it.
Soak in diesel overnight to loosen dirt/debris, use choke key supplied with gun
Try e-gunparts.com
No no no
Notches on the Choke TubeMost standard choke tubes have notches on their ends. The notches can be used to identity your choke tube, but they can be difficult to see. The following list shows what kind of choke the number of notches designate:1. One notch is a Full choke. (/)2. Two notches is an Improved Modified choke (//)3. Three notches is a Modified choke (///)4. Four notches is an Improved Cylinder choke (////)5. Five notches is a Skeet (or Cylinder) choke (/////)
* FC (full choke) **- IC (improved cylinder *- IM (improved modified) SS SK (skeet) ** M (modified) *** CYL (cylinder)