Had one of my 300wm's fail to go bang in cold weather, what I found is most likely in a lot of older Remington's. It's now fixed an has been tested to -25*F (deep freezer over night). Took all the others apart, checked an fixed them as required. Lots of little thing stacking up, but the root cause surprised me. Thinking back to days of spring winding it all was clear what happened.