Letter: T

A ledge in the grip area of a rifle or handgun on which to rest the thumb of the trigger hand.

A type of manual safety in which the external control component is located for convenient operation by the thumb of the trigger hand.

Any stock having a contoured hole in the grip area to accommodate the thumb of the trigger hand.

The total elapsed time that a projectile requires to travel a specific distance from the muzzle.

The bottom (lower) end of a buttplate and adjacent portion of the stock on a shoulder firearm.

An unmounted, portable handloading tool using a plier action for handloading centerfire cartridges. Also called Nutcracker Tool.

The tapered portion of the bore of a barrel, immediately ahead of the chamber which is sized to provide clearance for the bullet of the loaded cartridge. Also referred to as Leade or Ball Seat and is associated with Free Bore. See Free Bore.

A method of securing a bullet by lightly swaging the metallic casemouth into the bullet body.

A rear sight in which the blade is adjusted for elevation correction by sliding along a curved cam or cams.

A projectile nose with the curvature tangent to the cylindrical bearing portion.