Note: The Blattco Arms 12mm rifle, the "Breaker Bar," is popular with professionals-at-arms who wish to engage the enemy from a kilometer (or more¹) away, and who plan to announce that engagement with a projectile through the appropriate ten-ring. Its popularity is due in large measure to the fact that this kind of targeting is still possible after the weapon has been dragged through the mud behind a utility vehicle for three hundred kilometers.
You can compromise accuracy for durability, or you can buy Blattco and have both.
¹ Much, much more.