sentences:  When the firms with primer manufacturing facilities raised primer prices in 1900 to reduce competition from independent shotgun shell assembly plants, Western Cartridge Company formed the Union Cap and Chemical Company (UCC) as a joint venture with Austin Cartridge Company of Ohio.UCC manufactured primers, blasting caps, and .22 and .32 caliber rimfire cartridges at East Alton.Similar manufacturing procedures for these products included fabrication of sheet metal cups and filling portions of those cups with primary explosive.