Side-Screw.—The long screw holding the lock to the stock.
Slack-Tub.—A vessel containing cold water, to be used in suddenly cooling hot metals, as in hardening steel, for instance.
Smooth Bore.—A gun for throwing single bullets, made on the plan of a rifle, but having no grooves in the bore. It is sometimes called a “smooth-bore rifle.”
Standing Breech.—See false breech.
Steady-pin.—The small projection on the mainspring which fits into the lock-plate.
Strap.—The metal strip in a breech-loader which runs from the breech-works down the stock, in place of the tail, or the old fashioned breech-pin.
Strikers.—See plungers.
Sugar Maple.—A tree indigenous to the United States, whose wood is extensively used in the manufacture of gun-stocks. See curled maple.
Swivel.—The small piece in a lock connecting the tumbler and the mainspring.