NBRSA - National Bench Rest Shooters Association.


Neck - The portion of a cartridge case that grips the bullet. In a bottlenecked case, the cylindrical portion of the case in front of the shoulder.


Neck Down or Up - To change the diameter of the case neck during case forming.


Neck Expansion - The act of expanding a sized case neck by pulling it over an expander plug or button.


Neck Ream - Reducing neck wall thickness from the inside with a reamer. Commonly performed when forming a short case from a much longer one, such as the 300 H&H to 6.5mm Remington Magnum conversion.


Neck Size - To resize part or all of the neck only, leaving the case body unchanged.


Neck Turn - Reducing neck wall thickness from the outside by cutting or grinding.


Non-corrosive - Cartridges or primers with priming mixture that does not contain any compound capable of causing rusting or corrosion of bore or adjacent parts. All commercial small arms primers made in the U.S. and most military ammunition produced since 1954 has non-corrosive primers, although it is well to clean the bore promptly when in doubt.


Non-mercuric - A priming mixture containing no mercury compounds.


NRA - National Rifle Association. If you haven't joined, don't put it off!


NRMA - National Reloading Manufacturers' Association.


NSSF - National Shooting Sports Foundation.