The Barrett XM109 is a semi-automatic anti-materiel rifle developed by the Barrett Firearms Manufacturing. It is chambered in the 25X59 mm explosive ammo. It has a effective range of 2,000 meters (same as M82 with .50BMG) but with much greater lethality, capable of destroying lightly armored vehicles with ease. Due to the high recoil from such a large round, Barrett is researching a recoil reduction system for the XM109. It's barrel is 17.5 inches, shorter in comparison to the m107's 20 or 29 inch barrel. It has a 5 round magazine.
Because of the shape of the projectile they have sometimes bounced when hitting a soft target. This is very rare though. The ammunition itself can now come in air-burst, allowing the user to destroy targets behind cover.