Artillery Shells Mr. McNamara asked the Secretary of State for Defence what is his policy on the W-80 shell for 8 in artillery. Mr. Archie Hamilton I know of no shell designated "W80". Mr. McNamara asked the Secretary of State for Defence what is his policy on the W-79 shell for the 155 mm howitzer. Mr. Archie Hamilton The W-79 shell is not capable of being fired by the 155 mm howitzer.