I have a SACO National Match Barrel -MFG. Date: 7-1965 -Magnetic Particle Inspected and Proof Tested. -Barrel markings: M P SAK 779 1362 7-65 3251319 I wondered what it might be worth. Just a ball-park range. I have to take it to a gun shop guy I trust, to mount it to something and proove what kind of "group" it produces. Thanks to anyone who can help.