To fasten to or fit with a stock: esp. To fit (a gun, crossbow) with a stock.

transitive. To strengthen, fortify.

transitive. Apparently: to bore or pierce (a piece of ordnance). Cf. newel, n.1 2.

transitive. To cut spiral grooves in (the barrel or bore of a gun or cannon).

spec. To strengthen (a gun) by additional thickness of metal. Cf. fortification, n. 5c. Also, to strengthen (a ship) for especial emergency, by…

transitive. To furnish (a bolt, nut, etc.) with a screw thread; to rifle (a firearm). Also occasionally intransitive. Obsolete. rare.

transitive. To provide (a gun) with a chamber. Usually in passive: to be designed for a specified type of ammunition.

transitive. To bore (an engine cylinder, gun barrel, etc.) again; to bore (a hole) again. Also intransitive.

transitive. To fit (a gun) with a flint; to furnish or provide (a person) with a flint or flints.

To supply (a gun) with a vent or vent-piece.

(a) = percussion, v. 1; (b) to add percussion to (music).

transitive. To enlarge the bore of (a gun) with a special tool. Also with out.

transitive. To fit or adapt (a firearm, bullet, shell, etc.) so that it may be fired by percussion (percussion, n. 4).

transitive. To fit (a gun, etc.) with a new stock.

transitive and intransitive. To provide (a boiler, gun, etc.) with a new tube or tubes.

transitive. To provide (a cannon) with a new vent (vent, n.2 11d). Now historical.

transitive. To line again; to provide with a new lining.

With down. To reduce in size the bore of (a firearm or engine), by fitting metal shafts, etc. within the barrel or cylinder. Also with the barrel…