sentences:  John Olin, the son of founder Franklin W. Olin, improved shotgun cartridge designs in the 1920s by using harder shot and progressive burning powder.Western produced 3 billion rounds of ammunition in World War II, and the Winchester subsidiary developed the U.S. M1 carbine and produced the carbine and the M1 rifle during the war.Western ranked 35th among United States corporations in the value of wartime production contracts.