Sheridan .20 caliber is a great air rifle. I finally bought one this past year but have been shooting them since they first came out. I'm not sure when they were first produced but my grandfather, a gunsmith, was really impressed with them and had a couple in the early 60's that we used to clear his woodpile of untold #'s of rodents. They are extremely accurate/consistent once you learn about their iron sights. I paid around $115.00 for mine but have seen them on sale for $99.00