An adjustable device attached to the muzzle of a shotgun in order to control the shot patterns.
A sporting rifle with a heavy barrel, designed for long range small game hunting, firing high velocity, flat trajectory projectiles.
The speed of a projectile at a given point along its trajectory.
A shotgun choke which is perforated for the release of propellant gases.
A raised sighting surface which is separated from the barrel by means of posts that allow air to circulate around it. Its purpose is to minimize heat waves in the line of sight. Also called Bridge Rib.
A long-range sight with a mechanism for adjusting windage and/or elevation settings as read on a short scale in conjunction with graduations on a longer, linearly calibrated, scale.
The greatest vertical distance between any two bullet holes on a target, normally measured center-to-center.