From what I gather live ammo has never knowingly been allowed or used on a set that's what makes this one so baffling. Blanks with no actual bullet sure. It's actually amazing that given Hollywood's long long history of producing Tv and film westerns and war time flicks this and Lees case with a fragment lodged in barrel are isolated incidents. If anything this needs to strip down and boost up better regulations and professional scrutiny. Maybe from an outside source with zero care in budget cuts from Directors and Producers. I just cannot see Harry Callahan using a rubber .44