EXHIBIT 23 CONSENT OF INDEPENDENT AUDITORS Alliant Techsystems Inc.: We hereby consent to the incorporation by reference in Registration Statements No. 33-36981, No. 33-48851, No. 33-91138, No. 33-91196, No. 333-33305, and 333-38775 of our reports dated May 11, 1998, appearing in and incorporated by reference in this Annual Report on Form 10-K of Alliant Techsystems Inc. for the year ended March 31, 1998. DELOITTE & TOUCHE LLP Minneapolis, Minnesota June 25, 1998