If not then go through it completely, and lube it.
Otherwise, unscrew and pull the dis-assembly screw and separate the the barrel for action. Press in on the firing pin and then rack open the action half-way, then pull the screw retaining the side-plate on left receiver side,
use half the wooden cloths pin to lift the slide arm away from the slide bolt, you cal now remove the bolt to the rear of reciever and usr cleaning rod out the muzzle.
If need to plug the muzzle with wood golf tee and fill with bore cleaner and soak overnight.
Good Luck.
Post Pics.
Try following forum for additional info, www.rimfirecentral.com, menu down to WINCHESTER forum.
