As mentioned above, that cycling on the mag is what wears out the spring (over a long period of time), not the steady state of being loaded. Like you I have about 10 20 rd Pmags, all loaded. I'll easily go thru all of them at one trip to the range. I keep mine loaded really for one reason, that is I'm really to lazy to load them at the range. When I'm at the range I like to shoot and then get into my rhythm..... . Not stopping all the time to reload.
Cheers
Ron
|