[SatNews] Alliant Techsystems (NYSE: ATK) is in discussions with a group of lenders about refinancing its existing senior credit facilities, consisting of a $500.0 million revolving credit facility and a $257.8 million term loan. ATK hopes to replace the existing facilities with a new 5-year senior credit facility of up to $1.0 billion, consisting of a $600.0 million revolving credit facility and a $400.0 million term loan. ATK is an aerospace and defense company with more than 18,000 employees in 24 states, Puerto Rico and internationally, and revenues of approximately $4.8 billion.