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I bought this "Basket-Case" Mossy 500A a few years ago, from a co-worker who REALLY needed some cash in a hurry.....It sat behind the seat of his pickup truck for YEARS, it'd been "run hard and hung up wet", shot without the choke tubes installed.....:eek:......He didn't have the original choke tube(s), but I knew I had a few in one of my junk drawers under my workbench at home.....So, for $50, this poor orphan came home with me......

It sat "unloved" under my workbench until earlier this year, when I finally got around to doing the full detail-strip, cleaning, lube-job, and re-assembly.....Luckily, shooting it without the choke tubes by the previous owner did NOT screw-up the internal barrel threads, and a spare Modfied Tube slid right in place.....Here's how she looks today:







A function check after re-assembly worked great....HOWEVER......

On it's first trip to the range, it seems to "fail to extract" most all rounds I tried; didn't matter if it was a light, low-brass target load, or a Turkey Load. When I re-assembled the bolt, I noticed that the twin extractors appeared to be a little worn, maybe even the springs were somewhat weak.....A few questions:

1. It IS possible, that I got the left and right extractors reversed.....would this situation cause the aforementioned failure to extract?

2. Where is a good source for replacement parts for this gun, other than Gun Parts/Numrich? Not that I don't want to buy parts from them, just want to know some other sources, if possible.....

I've been a S&W Revolver guy, and a Colt 1911 guy, for MANY years, with the subsequent acquisition of some Gunsmithing Skills, but I never had to tinker with the inner workings on most of my Scatterguns much, so I defer to some learned people on the diagnosis of this shotgun's ills....Any and all thoughts are appreciated, this will make a GREAT "Truck Gun", once I get the reliability back to 100%.....

DocZeus
AKA
David
 

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I'm not a gunsmith nor do I play one on TV, but hang onto that Winchester box (must be 2 & 3/4" number 6 shot) those are collector items.
Besides yours and the one in my ammo locker I haven't seen one in years.
 
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Havlin sales has almost everything for Mossberg shotguns. Havlin Sales & Service - Mossberg Gun Parts Most likely the springs are weak. I have a 500 that needs them replaced. I'm not sure that you can put them in backwards, but if you can that could possibly cause a problem. I do know they are different.

What did that gun look like before? It doesn't look like a basket case.
 

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Discussion Starter #5
Havlin sales has almost everything for Mossberg shotguns. Havlin Sales & Service - Mossberg Gun Parts Most likely the springs are weak. I have a 500 that needs them replaced. I'm not sure that you can put them in backwards, but if you can that could possibly cause a problem. I do know they are different.

What did that gun look like before? It doesn't look like a basket case.
It was pretty rough, rusted barrel, no choke tube, lotta gunk in the reciever and trigger assembly.....

Thanks for the link, gonna get a set of Extractors and Springs, and see if that solves the problem.....

DocZeus
 
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