Try looking on the underside of the barrels near the breech or on the side of the breech block.
Choke markings , lets see , Chokemarkings , and Prints of Markings :D
Depends on how choke markings on the weapon.
They are for the choke wrench most likely. Choke markings are usually on the body of the tube.
The fixed choke markings are denoted by * marks on the bottom of the barrel under the forearm assembly. 3 on the left barrel and 4 on the right. *** Modified choke **** Improved Cylinder
Check the chambers.
# They relate to choke type, i.e., full, modified....
4 notches = cylinder choke (open), and one notch = full choke (tight)
Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder Perazzi shotgun choke markings are as follows the KG xxxx is the gram weight of the barrels the 18.4 being .724", 18.5 being .729" is the internal bore diameter of the barrels the circles with a dot in the are the points of choke old Europeain markings the choke with 1 dot is full, 3 dot is modified, 5 dots is cylinder. guns with choke tubes the markings go from 1 to 10. each number times .004" equals the points of choke. there fore full choke is 10 and represents .040" choke. down to 1 which is .004" improved cylinder
Mossberg has a web site.
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.
They identify which chokes you have in without having to use a choke tool. different companies have different markings but in general the fewer marks, the more constricted the choke (1 mark=full choke).
To determine the choke on a Westernfield Model 155A shotgun, you can look for markings on the barrel, which may indicate the choke type (such as "IC" for Improved Cylinder, "M" for Modified, or "F" for Full). If there are no markings, you can perform a choke gauge test using a choke gauge tool or a caliper to measure the constriction at the muzzle. Alternatively, you can pattern the shotgun using different loads and see how the shot spreads to infer the choke type.