about 1951
The Colt match target .22 with serial number 220044-S was made in 1966.
100-1000 USD depending on specifics.
try: edssportshop.com
Proofhouse.com has Colt sn data.
Browning Challenger made in 1974. $300-$400.
75-150 or so
Can't give a positive answer however I just paid 80 dollars for one in good shape.
you probably have 2d/3d/ model target model of 1952. The Match Target Bullseye Model serial # ends with MT You would have a second series match target and it would not have the bullseye or target on the gun, but would say Match Target. This gun came in 4 1/2 & 6 inch barrels. Robert Rayburn's small book has lots of info for you. al
If you fire a .45 caliber bullet at a paper target, it will leave a .45 inch hole.
If you are seeking date of manufacture, contact Ruger through their website. Values depend on condition- anywhere from $100-300.
You dont tell us which version, so we dont know if you have the K22 Target or Combat Masterpiece. In any event, $250-$450.