Originally Posted by Clays Shooter
I experienced the same issue on two model 21's and an Ithaca NID. In each case, I found that the hammer springs had either been previously mutilated, not installed correctly or the wrong springs had been installed. Replacing the springs solved the problem for me.

No telling what has happened to an 80 to 100 year old gun during its lifetime.

Welcome, and good to see your first post.

Best,
Ted