[billy]

there are slight differences in these receivers, are they both stock? and whats the story with the different hammers ?i know that the one with holes was worked on by a smith but the other? these are the only two 10-22s i have ever looked at closely. thank you for your time! bill

[okami515]

go to ruger.com and check when they were made, you can use the serial numbers to find out. if they are wide spaced in manufacturing time that could account for the differance

[billy]

thanks, i did just that they are 3 years apart 1991 and 1994