1950's
Someone at the Sako collector club might know.
You will have to contact Sako. Falls outside published data.
100-1000 dollars
The SAKO L46 in .222 Remington with serial number 17741 was produced in 1960. The SAKO L46 model was manufactured from the late 1940s until the early 1960s, and its serial numbers can help determine the production year.
Remington, Winchester, Sako to name a few
Impossible to answer without the serial number.
No English published sn data that I am aware of.
MSN has a Sako Collectors group.
The twist rate is 14"
Depending on condition 400-1000
No sn data published in english, 100-1000 depending on specifics
These rifles made in Finland