CapitalBee sent me a spring to try in a Webley Junior pistol.. It was easy to cock but was down in power, and after 15 shots when I checked it had shortened a lot. I've been told that airgun springs are over stressed compared to most springs---and I wonder if this spring could be retempered or is it down to the quality of the wire?
I'm quite happy with the normal springs for the pistol and as I only tend to have the over on on Christmas Day and New Years Day, cannot see my throwing it in the over for quite a while!