shotgun magazine spring fatigue

Lugin · June 29th, 2006, 02:43 PM

I have a Mossberg 500 12ga. Will the magazine spring become fatigued if left fully loaded for extended periods of time? Is "downloading" by one enough to take care of it? Is replacing the spring on a schedual worthwhile or a waste of money? Thanks

blueyedevil · June 29th, 2006, 02:49 PM

Most modern springs are quite resilient to spring fatigue, and repeated unloading and loading are more destructive in general than prolonged periods in a compressed or relaxed state. I wouldn't worry about it.

RSSZ · June 29th, 2006, 03:26 PM

I have had a Moss500 for use as a HD weapon for 18 years now. It is the 8 shot pistol grip model.Shortly after purchase I changed the grip and forearm to the Pachmeyer Vendicator series. It has the same mag spring in it as when i bought it.

I always keep 3 in the mag(3") with chamber empty,hammer cocked and safety on. The only time that I download this weapon is for routine maint. and if we go away on a trip.

No problem with the spring whatsoever. I can put only one round in the mag and it will feed it without a problem.---------

'75scout · June 29th, 2006, 09:42 PM

I have a 1956 Wingmaster I use for HD. I have had it for 6 months. But as far as I know the spring is original.

Colin · June 30th, 2006, 01:39 AM

My 500 has a problem with the follower sticking either when fully loaded or on the last shot, I can reduce the problem by using a mix of 3” shells and 2x 2 ¾” shell first and last.

I just ordered a 590 to replace it.

June 29th, 2006, 02:43 PM	#1
Lugin New Member Join Date: Jun 2006 Location: Louisiana Posts: 1	shotgun magazine spring fatigue I have a Mossberg 500 12ga. Will the magazine spring become fatigued if left fully loaded for extended periods of time? Is "downloading" by one enough to take care of it? Is replacing the spring on a schedual worthwhile or a waste of money? Thanks

June 29th, 2006, 03:26 PM	#3
RSSZ Distinguished Member Join Date: Mar 2005 Location: USA Posts: 1,847	I have had a Moss500 for use as a HD weapon for 18 years now. It is the 8 shot pistol grip model.Shortly after purchase I changed the grip and forearm to the Pachmeyer Vendicator series. It has the same mag spring in it as when i bought it. I always keep 3 in the mag(3") with chamber empty,hammer cocked and safety on. The only time that I download this weapon is for routine maint. and if we go away on a trip. No problem with the spring whatsoever. I can put only one round in the mag and it will feed it without a problem.--------- Last edited by RSSZ; June 30th, 2006 at 07:29 AM.

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June 29th, 2006, 02:49 PM	#2
blueyedevil Senior Member Join Date: May 2006 Location: Colorado Posts: 616	Most modern springs are quite resilient to spring fatigue, and repeated unloading and loading are more destructive in general than prolonged periods in a compressed or relaxed state. I wouldn't worry about it.

June 29th, 2006, 09:42 PM	#4
'75scout Senior Member Join Date: Feb 2006 Location: Texas Posts: 1,165	I have a 1956 Wingmaster I use for HD. I have had it for 6 months. But as far as I know the spring is original.

June 30th, 2006, 01:39 AM	#5
Colin Distinguished Member Join Date: Feb 2006 Location: Vancouver Posts: 1,385	My 500 has a problem with the follower sticking either when fully loaded or on the last shot, I can reduce the problem by using a mix of 3” shells and 2x 2 ¾” shell first and last. I just ordered a 590 to replace it.