Values listed in brackets are for alternate (secondary) fire.
The lever action rifle (or LAR) is a low-cost, high-damage rifle designed for precision shots. It is one of the cheapest weapons in the game, and serves its purpose well into the later waves. A sufficiently-levelled sharpshooter can deal in excess of 600 points of head damage. Its drawbacks are its fairly slow (almost 1 second) fire rate, and the per-round reloading that it uses.
Aiming for the head is very important, since it doubles the damage dealt.
Avoid using for large crowds, since the low fire rate and long reloading times will cause you to be overwhelmed before long.