Chad gave me some great insight on how to read the date codes (his answers in bold)
How do you read the date code on the Ruger manuals?
Examples:
#1 - Security/Speed/Police service Six code is KE&E/5-84 R3
I read it as a manual for both the Stainless and blued models, dated May 1984, revision 3 Yes, correct
#2 - Security/Speed/Police service Six code is E4/40/1-79
I figure Blued models, dated January 1979. I have no idea what the 4/40 after the E means E is the part code for DA parts, 4th revision, 40,000 printed
#3 - Security/Speed/Police service Six code is KE6/45/9-79
I figure Stainless models, dated September 1979 but again don't know what the 6/45 after the KE means 6th Revision, 45,000 printed
Last one for fun - No. 3 Single Shot Carbine code is SC6/12.5/12-78
I guess SC=single shot carbine, dated December 1978. But what does the 6/12.5 mean? 6th Revision, 12,500 printed
How do you read the date code on the Ruger manuals?
Examples:
#1 - Security/Speed/Police service Six code is KE&E/5-84 R3
I read it as a manual for both the Stainless and blued models, dated May 1984, revision 3 Yes, correct
#2 - Security/Speed/Police service Six code is E4/40/1-79
I figure Blued models, dated January 1979. I have no idea what the 4/40 after the E means E is the part code for DA parts, 4th revision, 40,000 printed
#3 - Security/Speed/Police service Six code is KE6/45/9-79
I figure Stainless models, dated September 1979 but again don't know what the 6/45 after the KE means 6th Revision, 45,000 printed
Last one for fun - No. 3 Single Shot Carbine code is SC6/12.5/12-78
I guess SC=single shot carbine, dated December 1978. But what does the 6/12.5 mean? 6th Revision, 12,500 printed