Any sight, front or rear, not containing optical magnifying elements. It may be fixed or adjustable. Also called Metallic Sight.
The velocity of a projectile, or a shot charge, that is recorded by suitable instrumentation located a predetermined distance from the muzzle of a test barrel or a firearm.
Barrels which may be installed on a particular action without factory fitting.
The science of ballistics focusing on all thermochemical and physical events from primer ignition through projectile exit from the muzzle.
On firearms with a one-piece stock, an intermediate part that holds the wood against the barrel and frame and retains the latch mechanism.
The elapsed time from moment of firing-pin contact on the primer to the point on the X (time) axis equal to the point where the pressure time curve indicates propellant burning has initiated.
A heated die process which produces a carved effect in the gun stock or forearm.
The abbreviation for Improved Military Rifle Powder. A single base, tubular, smokeless propellant.
A firearm is said to be “In Battery” when the breeching mechanism is in the proper position for firing.
A firearm design incorporating it’s firing mechanism substantially in line with the longitudinal axis of the barrel. Ignition gases are typically induced concentric to the bore with this design.