Rifles have been used in military battles since the 1770s, but they were few in number, and only performed half as well as rifles in the mid-1800s. Battle rifles truly gained widespread use and acceptance during the Civil War, when whole brigades and army divisions were armed with famous guns known as Springfields, Enfields, Sharps', Colts, Spencers, and Henry's. The last two mentioned were the first repeating-fire weapons, and led to further technological developments in the future.
Often used in synchronization with the Plasma Pistol in the Noob Combo.
Player 2: It's called the Battle Rifle, biyatch.
However, because they are chambered for larger bullets, thus causing heavier recoil, they are not always as suited for full-auto fire compared to assault rifles. Battle rifles are more effective for support roles and when engaged in mid-long range combat.
Two excellent examples of battle rifles are the American M14 and the Belgian FN FAL. These rifles are both automatic and fire the full-powered 7.62x39. There are many other battle rifles but these two are among the most famous.
Halo has made the term battle rifle quite popular among the gaming community.