The least (no choke at all) is cylinder. Tightest- Turkey.
Table below gives name, constriction in inches, percetage of shot held inside a 30 inch circle at 40 yds (25 yds for skeet and cylinder)
Cylinder.00040 at 40 yd
70 at 25 ydIIIII notchesSkeet 1.00545 at 40 yd
75 at 25 ydImproved Cylinder.01050IIII notchesSkeet 2 (light Mod.).01555Modified.02060III notchesImproved Modified.02565II notchesFull.03070I notchExtra Full.04073Turkey.045 plus75 plus
Extra Full, Full, Improved Modified, Modified, Improved Cylinder, Cylinder, Skeet
Cylinder< 200Skeet22.5.005 of an inchImproved Cylinder25.010Light Modified30.015Modified32.5.020Improved Modified35.025Light Full37.5.030Full40 or More.035Extra Full40 or More.040 Cylinder is the LEAST choked- no choke at all. There are non-standard chokes tighter than Extra Full, used by some turkey hunters, or in shotgun shooting matches. Numbers of the middle column are yards of distance where it would be used, the right column is the reduction in size from the bore (in inches)
Without serial #, grade, single or double triggers, beavertail or splinter forearm, ejectors or extractors, length of barrels chokes and length of stock the latter being most common 600-4000 range.
There is no "Standard" choke. A5's could be purchased with one of many different chokes, however, the more common chokes on a 28" barrel were Full and Modified
Shells
it is shotgun because the size of rifle is different than shotgun.
The chokes from the back and armbar are undoubtedly the most common submission used in BJJ.
Are you talking about an Auto 5 Light Weight? What is the barrel length? Fixed or tube chokes? Finish? Type of wood? Any engraving? Any accessories? How old? All of the above affect value. A broad range (common to high end) would be @ 500-5000.
type II pattern or branching pattern is the most common pattern
Model 120 is most common
About $150. Common and not so reliable.
Four-Ten, 12 gauge, 16 gauge, and 10-gauge.