Sole underwriter J.P. Morgan Chase held a bank meeting last Thursday to launch syndication of a $1.05 billion deal for Alliant Techsystems. The credit comprises a six-year, $250 million revolving credit and a six-year, $300 million term loan "A," both priced at LIBOR plus 23/4 %, and an eight-year, $500 million term loan "B" priced at LIBOR plus 31/4 %. Alliant Techsystems is a Hopkins, Minn.-based producer of gun powder, smart bombs, and rocket propulsion systems.