BROWNING CHOKES AND THEIR CODES (ON REAR LEFT-SIDE OF BARREL)* designates full choke (F).*- designates improved modified choke (IM).** designates modified choke (M).**- designates improved cylinder choke (IC).**$ designates skeet (SK).*** designates cylinder bore (CYL).INV. designates barrel is threaded for Browning Invector choke tube system.INV. PLUS designates back-bored barrels
Improved Modified.
They are for the choke wrench most likely. Choke markings are usually on the body of the tube.
BROWNING CHOKES AND THEIR CODES (ON REAR LEFT-SIDE OF BARREL)* designates full choke (F).*- designates improved modified choke (IM).** designates modified choke (M).**- designates improved cylinder choke (IC).**$ designates skeet (SK).*** designates cylinder bore (CYL).INV. designates barrel is threaded for Browning Invector choke tube system.INV. PLUS designates back-bored barrelsIf you have any problems trying to figure it out, call or write Browning. You can contact them on their web page at Browning.com.
Choke tube, choke wrench, box, owner's manual,
4 notches = cylinder choke (open), and one notch = full choke (tight)
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.
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.
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)
BROWNING CHOKE CODES (check on rear of barrel, usually on the left, but, sometimes on the right). ( for an O/U open and check flats) * Full *- Improved Modified ** Modified **- Improved Cylinder **$ Skeet *** Cylinder bore INV Browning Invector choke tube system. INV. PLUS Browning Invector Plus back-bored barrels Note: Inv and Inv Plus are not interchangeable. http://www.browning.com/customerservice/qna/detail.asp?ID=100 will give you the numerical data.