M77 155 howitzer

[chris vickery]

Here's a question for our arty types. I was just reading an article in an industrial magazine regarding a new 155mm howitzer purchased by the Canadian Forces. It carries a designation of M77 and we ordered 6 of them. From what the article said, they are an American product, the USMC ordering several hundred and I guess we either tagged along or have bought some for trials???
The jist of the article was that they are made of a high percentage of titanium and aluminum to make them strong yet lightweight. Any insights???