. . "The M426 8-inch shell was a chemical artillery shell designed for use by the U.S. Army. It was designed to be used with approximately 14.5 lbs of GB or VX (nerve agent)."@en . . "The M426 8-inch shell was a chemical artillery shell designed for use by the U.S. Army. It was designed to be used with approximately 14.5 lbs of GB or VX (nerve agent)."@en . . . . "M426 8-inch shell"@en .