Shotgun Chokes Explained (Cylinder, Improved Cylinder, Modified, Full)
Choke is a constriction
Many shooters are puzzled with shotgun chokes. Choke is a tapered constriction of the gun barrel’s bore at the muzzle end. Some of the shotguns has fixed chokes, some of them can be equipped with a choke. The exit end of the choke is smaller by some dimension than the actual bore of the barrel. Chokes tighten the pattern and enable you to shoot on further distances which is useful for trap or hunting. It is recommended to use Cylinder or Imroved Cylinder for home defense.
Following illustration shows the difference between chokes and how they control the pattern:
Remember, choke is located on the end of the barrel, so if you had a Modified choke, for example, and cut the barrel, you have the Cylinder choke now because choke was cut out.
The purpose is to decrease the spread of the shot in order to gain better range and accuracy.
Generally, there are several choke types available: Cylinder, Skeet 1, Improved Cylinder, Skeet 2 (light Mod.), Modified, Improved Modified, Full, Extra Full and Turkey.
Most widely used choke types are: Cylinder, Imp Cylinder, Modified and Full.
|Cylinder||.000||40 at 40 yd
70 at 25 yd
|Skeet 1||.005||45 at 40 yd
75 at 25 yd
|Improved Cylinder||.010||50||IIII notches|
|Skeet 2 (light Mod.)||.015||55|
|Improved Modified||.025||65||II notches|
|Turkey||.045 plus||75 plus|
Cylinder and Improved Cylinder
Cylinder bore doesn’t have a restriction. Improved Cylinder has a minimal restriction. Recommended for short distances using birdshot and buckshot (20-30 yards) and self-defense. The shot pattern is much more spread out and your chances of hitting a target are better.
It is recommended to use slugs with Cyl or Imp Cyl for better accuracy.
Modified Choke with moderate constriction. Good for medium distances of 30-40 yards.
Full Choke has the tightest constriction. For distances beyond 40 yards.
Chokes and Slugs
Cylinder and Improved Cylinder are recommended for use with a slugs for better accuracy.
Purpose of chokes
A choke is designed to alter the distribution of the shot as it leaves the firearm. For shooting most game birds and clay pigeons, a desirable pattern is one that is as large as possible while being dense enough to ensure multiple hits on the target. Shotguns intended for defensive use often have cylinder or improved cylinder chokes for the widest shot pattern at typically short defensive range.
Shooter is able to change chokes on some of the shotguns. Remember to check chokes often because they can get loose.
Vang Comp System
This choke system is designed specially for combat and home defense shotguns.
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