Ruger Security-Six [SEP] service entry
What year was Ruger Security-Six commissioned? What year was the service entry date for Ruger Security-Six? What year did Ruger Security-Six come into use? In what year did Ruger Security-Six enter service? What year was Ruger Security-Six made? What year is Ruger Security-Six associated with? What was the year Ruger Security-Six entered service? In which year was the service entry date for Ruger Security-Six? Which was the official year for the approval of Ruger Security-Six? What year was Ruger Security-Six introduced?
1972