Choke (Shotgun)
Definition
Constriction at the muzzle of a shotgun barrel that controls pellet spread. From most-open to most-tight: cylinder, improved cylinder, modified, full choke.
Related terms
- Accidental Discharge
- Unintended firing of a weapon without a deliberate trigger pull, usually caused by mechanical defect, sear wear, drop impact or unsafe handling.
- Kinetic Energy
- KE = (1/2) m v squared, where m is projectile mass and v is velocity. Doubling velocity quadruples the kinetic energy delivered...
- MOA (Minute of Angle)
- 1/60 of a degree of arc. Equal to approximately 2.908 cm (1.047 inches) at 100 m. Used in civilian and some law...
- Muzzle Velocity
- Speed of the projectile at the instant it leaves the barrel, expressed in metres per second (m/s) or feet per second (fps)....
- Ordnance Gelatin
- Calibrated tissue simulant. 10 per cent gelatin at 4 degrees C is the NATO and FBI standard; 20 per cent gelatin is...
- Permanent Cavity
- The lasting wound channel produced by the bullet's direct crushing and laceration of tissue. Diameter approximates expanded projectile diameter. At handgun velocities,...
- Ricochet
- The deflection of a bullet off a surface at a low angle of incidence, producing a new trajectory that diverges from the...
- Temporary Cavity
- The transient radial tissue displacement produced by a bullet's passing. Caused by the transfer of kinetic energy to surrounding tissue via compression...
Explained in
- Velocity, Penetration, Dispersion, Ricochet and Accidental DischargeConstriction at the muzzle of a shotgun barrel that controls pellet spread. From most-open to most-tight: cylinder, improved cylinder, modified, full choke.