So I have a 4in 629 and went out last weekend and after 24 rounds I reload and when I swung the cylinder shut everything froze. The action won't cycle the cylinder at all. The release won't move to let the cylinder disengage from battery. The hammer will pull back but only half way and obviously the cylinder will not turn when I do this. I've never seen a revolver do this, any thought or ideas of what might have happened and how to possibly fix it?

