Winchester Ammo Sales Up Olin Corp., makers of Winchester Ammunition, reported ammunition sales totaled $80.7 million in the fourth quarter of 2005, up slightly from $78.7 million in the same period the previous year. The company reported overall revenue of $604.1 million in the fourth quarter, a 24 percent increase from last year. In addition to manufacturing Winchester sporting ammunition, canister powder, reloading components, small caliber military ammunition and industrial cartridges, Olin is a manufacturer of metals and chemicals. The company is traded on the New York Stock Exchange under the ticker symbol OLN.