I have a post-64 Winchester 94 on which the lever sticks badly as you start to open the gun. If you cock the hammer first, it works fine. I have tried removing the buttstock and cleaning the gun, both of which did not good. there seems to be something up with the relation of the bolt to the hammer, as it starts to come back and the lever is maybe 1/4 the way down. Ther isn't any peening that I can easily see. What is up? Anyone ever have this problema dn if so, what did ya do about it?