[Richard]

AR_15, mil.spec.mag. Can you leave/store 20 rounds in a 30 round mag for extended periods of time without damage to the spring? How long?

 

[Guest]

I store them topped off at 30 rounds and have never had any issues. Some of my mags are over 10 years old.

 

[NRA_guy]

Some national gun test magazine (the paper kind) tested loaded magazines that had been stored for years and saw no problem.

They concluded that was just another concern dreamed up by somebody,

 

[gunluvinatty]

As I understand it from my engineer friends, the steel in the springs is worn out by use (loading and unloading - can't remember the term they used) and is not significantly deteriorated by being left stored at capacity. I leave my filled.

 

[bullet]

I leave mine filled also. I have one of my 10 round mag for my AR since 1968 and it does not miss a beat.

 

[GunOneDown]

Springs are designed for CYCLES not straight compression. Therefore, u can wear a mag out in a month if u load and unload it a few thousand times plus heat from running it in the gun. Loaded mags whether full or partially full doesn't matter is they are just stored.

 

[bubbat]

Kinda off topic, but does anyone have problems with the 30 round GI mags jamming if loaded with 30 rounds? My nephew, a Marine who has done 3 tours in Iraq said they only put 27 rounds in theirs because they jam if you put in more than that.

 

[Guest]

Kinda off topic, but does anyone have problems with the 30 round GI mags jamming if loaded with 30 rounds? My nephew, a Marine who has done 3 tours in Iraq said they only put 27 rounds in theirs because they jam if you put in more than that.

I've seen guys who only load 29 rounds because it's easier to seat the magazine on a closed bolt, but I've never had a mag fail because it had 30 rounds in it. But I'm sure a big burly Marine wouldn't let a magazine kick his ass when a little Army Infantryman like me could slam one home. :evil: hmmm now I bet the tread will really be hijacked.

 

[bubbat]

I've seen guys who only load 29 rounds because it's easier to seat the magazine on a closed bolt, but I've never had a mag fail because it had 30 rounds in it. But I'm sure a big burly Marine wouldn't let a magazine kick his ass when a little Army Infantryman like me could slam one home. :evil: hmmm now I bet the tread will really be hijacked.

He's not a big burly Marine, he's a short stocky one. Kinda like his great uncle the 5'2" Marine drill instructor at Parris Island during WWII. :lol4:

:OT1: