That portion of a firearm's barrel immediately in front of the chamber where the bullet travels prior to contacting the rifling.

simple past tense and past participle of lead

Held in place by strips of lead. / Containing or treated with the element lead. / Containing tetraethyllead. / (informal) Caffeinated.

An introduction; something that leads into the beginning of something. / A region of data at the beginning of a compact disc, holding the table of contents.

(transitive, idiomatic) to mislead, to try to make someone believe a lie. / (transitive, idiomatic) to encourage with the illusion of a romantic relationship.

(idiomatic) in first place in a contest

Alternative form of lead-in

Used other than figuratively or idiomatically: see lead, in. / To introduce, to mark the beginning of something, especially in music.

(countable) The act of leading or conducting; guidance; direction, course

(not comparable) Foremost. / Main, principal.