BATH — The new projectile to be used in a long-range gun on the new destroyer being built at Bath Iron Works has successfully completed its first live-fire tests.

The Zumwalt-class of destroyers will feature two 155mm guns capable of hitting targets from 100 miles away. To do that, the gun will use a rocket-assisted projectile.

The Navy said Wednesday that two test projectiles flew about 50 miles. Controlled by global positioning system, the projectile met its test objectives.

The tests were conducted at White Sands Missile Range in New Mexico. Live-fire testing is part of the qualification and engineering process for the Advanced Gun System, which will eventually be deployed on the Zumwalt.