NOTCH SIGHT

An Open rear sight having either a “V,” “U” or square shaped cut on its upper edge.

NOSE

The point or tip of a bullet.

NON-SELECTIVE SINGLE

A single trigger on double-barrel guns which fires the barrels in a fixed sequence.

NON-CORROSIVE PRIMER

A primer which does not contain chemical compounds that could produce corrosion or rust in gun barrels. It does not by itself prevent corrosion or rust.

NON-CORROSIVE

A term applied to primers that contain no chemical compounds that could produce corrosion or rust in gun barrels, but does not necessarily protect from corrosion or rust.

NOMINAL CHARGE

A typical charge weight of a specific powder for a specific combination of components.

NITROGLYCERINE

The common term for the nitric acid ester of glycerine, i.e., glyceryl nitrate. It is incorporated with nitrocellulose smokeless powder formulations to make double base propellant powders. See Double Base Powder.

NIPPLE PICK

A pointed instrument used to clean the orifice of nipples on percussion firearms.