What is the age and caliber of mod 1894 ser number 331761?

The Model 1894, commonly known as the Winchester 94, was produced starting in 1894. Serial number 331761 indicates that this rifle was manufactured around 1910. The caliber of a Model 1894 can vary, but it is most often found in .30-30 Winchester, .32 Win Special, or .38-55 Win, among others. To determine the specific caliber of your rifle, you may need to check markings on the barrel or receiver.