I wanted to know if it is a good or bad idea to keep your Magazine fully loaded all the time or if it will weaken the spring, and if so how long can you leave a Magazine fully loaded before you empty it and let the spring relax.
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Chris said:The metal in the spring is engineered to go from point A to point B. So long as it remains in that range, no damage is done. Compress it or extend it too far and yes, you will do damage.
The only other thing that weakens a spring is cycling it. which is why you need to replace springs in your guns every so often. It's not from the pounding, but the number of cycles it has seen.
Chipperman said:The classic example is the M16 mag. They are supposedly 20 or 30 round mags. Loading them up to that capacity will cause premature failure, however, because of over compression. That's why everyone recommends downloading M16/AR mags a couple of rounds.
derek said:I think the main concern was a mag loaded to the max 30 rounds would not always load/seat easily in the mag well. You would have to hit pretty good on a closed bolt to get it to lock in sometimes. We made it practice to load 28.
JonJ said:The "Gunny" who's in charge keeps them at 18 rounds, no more.