I got this rifle from my dad back in 1972, when he died. I was 15 years old. It is a Sako Rifle, in .222 caliber. The rifle is stamped Riihimaki on the side, and the serial number is 18240.....I am trying to learn more about the rifle...what is the numeric model type....year of manufacture, etc. It is not for sale, but I want to learn more about it. I have a 17-year-old son and he is interested in using it to hunt coyotes. I just purchased two boxes of shells. It has not been fired since 1972.