A unique variant of the cowboy repeater, it has a scope which was mounted on the rifle by Corporal Sterling, produces slightly more damage, reloads faster as it does not load through the loading gate (it lacks one), but through the front of the magazine tube (similar to Lincoln's repeater). Also, the La Longue Carabine is more accurate than a regular cowboy repeater. This spread has been reduced greatly as a result of the latest patch, as it is now slightly more than that of the Marksman carbine.
Like most unique weapons, weapon modifications cannot be used on La Longue Carabine. However, by default, it comes with aforementioned scope modification and the extended feeder magazine already attached, although judging by the appearance of the rifle the magazine tube on La Longue Carabine is smaller than a cowboy repeater with an extended magazine.
La Longue Carabine can fire a total of about 745 standard rounds, the equivalent of 68 reloads, from full condition before breaking.
"La Longue Carabine" is a French phrase meaning "The Long Carbine"; it is a reference to the James Fenimore Cooper novel "The Last of the Mohicans", in which the main character, Hawkeye, is nicknamed La Longue Carabine by the Delaware tribe for his famed marksmanship.
xbox360 Though perhaps not limited to the La Longue Carabine, there seems to be a bug associated with this weapon that will sometime cause the player to be unable to switch ammunition types, even when a particular ammunition type has been exhausted. This is resolvable by dropping, or storing the weapon on a companion, and then reequipping it. Though it may still not be possible to switch ammunition types while equipped.