The Navy has not yet decided on a munition for the Zumwalt-class destroyer's Advanced Gun System after canceling the long-range land-attack projectile because the price per round was not economical. Rear. Adm. Ronald Boxall, surface warfare director in the office of the chief of naval operations (N96), told Inside the Navy Jan. 10 the gun itself is a key capability for the destroyer, but with only three ships in the Zumwalt-class there is not a business case analysis to fund...