Thread: Keeping semi autos cocked

Originally Posted by carlhurley

this is crap springs wear out because of use not compression the metal only has so many times that it contracts and expands before it wears out leaving your magazine full doesnt harm it loading it and unloading does if the springs failed because of being compressed then all your cars would be sitting on their axles after a couple of years think vintage cars tappet springs etc

I've heard the same from a person who knew a lot about metallurgy.

IMHO leaving them cocked does no damage, the training rifles at work are always cocked so the safety can be on, they function well. I know magazines that are always left full, for months/years on end and they still function well.