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 Post subject: Mossberg 930 shell stop
PostPosted: Tue May 25, 2010 1:04 pm 
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Joined: Sat Jan 02, 2010 9:18 am
Posts: 18
Location: Metro Atlanta
Looking for help...I load my 930, whether it is 2 or 3 or 4 shells into the magazine. I work the action and some times the shell stop will not release a shell. What can I do to correct this problem? I tried oil and break free...but it seems stiff and will not release the shells sometimes. I use this 930 for trap and have approx 500 rounds through it. I am happy with this weapon...(20 out of 25 in traps for new guy) Any advice will be helpful before I go to a gunsmith. Thanks


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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Tue May 25, 2010 5:43 pm 
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Joined: Sun Dec 09, 2007 2:32 pm
Posts: 293
Location: Tampa Fl.
Are the shells you are useing the same ones over and over?. Try brand new rds. See if they feed OK. A similiar post had the same trouble. The shooter was reuseing the same rds. over and over. The force of the bolt slamming the rds. into the chamber left a ridge or burr on the rds. and the shell stop was getting hung up on this ridge ( burr). This does not happen all the time only when the ridge lines up with the shell stop. I very rarely load my SPX this way. I load through the ejection port, hit the bolt release, and start loading the mag. You have to remember the gun is made to fire the rd. in the chamber and feed a new rd. not reusing the same rds. over and over. Try new rds. if they feed dont reuse them try same more new rds. if they feed then it isn't the gun. Hope this helps.


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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Tue May 25, 2010 8:59 pm 
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Location: Moodus, CT
Does the Bolt Release button feel "stiff" when closing the bolt with asn empty mag tube and an empty magazine??

With the bolt closed (empty mag tube & chhamber), and you push the button what does it feel like??

Smitty

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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Tue May 25, 2010 11:32 pm 
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Joined: Sat Jan 02, 2010 9:18 am
Posts: 18
Location: Metro Atlanta
Smitty in CT wrote:
Does the Bolt Release button feel "stiff" when closing the bolt with asn empty mag tube and an empty magazine??

With the bolt closed (empty mag tube & chhamber), and you push the button what does it feel like??

Smitty

bolt feels the same whether closed or open...does not feel stiff...has moderate amount of tension.


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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Tue May 25, 2010 11:38 pm 
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Joined: Sat Jan 02, 2010 9:18 am
Posts: 18
Location: Metro Atlanta
LWM in TPA wrote:
Are the shells you are useing the same ones over and over?. Try brand new rds. See if they feed OK. A similiar post had the same trouble. The shooter was reuseing the same rds. over and over. The force of the bolt slamming the rds. into the chamber left a ridge or burr on the rds. and the shell stop was getting hung up on this ridge ( burr). This does not happen all the time only when the ridge lines up with the shell stop. I very rarely load my SPX this way. I load through the ejection port, hit the bolt release, and start loading the mag. You have to remember the gun is made to fire the rd. in the chamber and feed a new rd. not reusing the same rds. over and over. Try new rds. if they feed dont reuse them try same more new rds. if they feed then it isn't the gun. Hope this helps.


LWM...I measured the rounds and they were 2 1/2 inch '00' buckshot for home defense (sellier & Belliot). I tried my Trap ammo #7 1/2 shot, and it measure out at 2 1/4 inches...these had no problem feeding and extracting.

The barrel has 2 3/4 inch to 3 inch shells...I guess if a ran some 3 inch in there it really will hang up in there.


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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Wed May 26, 2010 2:39 am 
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Joined: Wed Feb 25, 2009 12:50 pm
Posts: 282
Location: Plainfield, Illinois
Buford T. Justice wrote:
LWM in TPA wrote:
Are the shells you are useing the same ones over and over?. Try brand new rds. See if they feed OK. A similiar post had the same trouble. The shooter was reuseing the same rds. over and over. The force of the bolt slamming the rds. into the chamber left a ridge or burr on the rds. and the shell stop was getting hung up on this ridge ( burr). This does not happen all the time only when the ridge lines up with the shell stop. I very rarely load my SPX this way. I load through the ejection port, hit the bolt release, and start loading the mag. You have to remember the gun is made to fire the rd. in the chamber and feed a new rd. not reusing the same rds. over and over. Try new rds. if they feed dont reuse them try same more new rds. if they feed then it isn't the gun. Hope this helps.


LWM...I measured the rounds and they were 2 1/2 inch '00' buckshot for home defense (sellier & Belliot). I tried my Trap ammo #7 1/2 shot, and it measure out at 2 1/4 inches...these had no problem feeding and extracting.

The barrel has 2 3/4 inch to 3 inch shells...I guess if a ran some 3 inch in there it really will hang up in there.


Ok, but the main question here is, are you chambering the same rounds over and over again? Reason I ask is because I was one of the other members here who have had this same issue. What is happening is when you chamber the same round several times, the brass lip actually gets smashed into a slightly larger diameter, Then when you are pulling the bolt back, the larger diameter lip cannot get past the shell stop. Or I have found that bottom of the brass actually gets a circular groove smashed into it, hindering the shell stop from being able to completely go through its full range of motion to release that shell.

In the pic below, the shell on the left is new and the one on the right has been chambered several times. Notice how beat up the one on the right is. Even when I load this shell by itself and try to pull the bolt back it will only release 2 out of 10 times.

Image

So my best advice is, pattern some buckshot, make a choice of what you want to use, load your SPX straight from the new box of ammo you buy, and do not chamber those rounds unless the "time" comes. For practice of doing load drills, pick up some AZoom or some other brand of snap/dummy caps. http://www.cheaperthandirt.com/11370-5.html

Hope this helps.

The Guinea

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 Post subject: Re: Mossberg 930 shell stop
PostPosted: Wed May 26, 2010 7:45 pm 
Utility Grade

Joined: Sat Jan 02, 2010 9:18 am
Posts: 18
Location: Metro Atlanta
Buford T. Justice wrote:
Smitty in CT wrote:
Does the Bolt Release button feel "stiff" when closing the bolt with asn empty mag tube and an empty magazine??

With the bolt closed (empty mag tube & chhamber), and you push the button what does it feel like??

Smitty

bolt feels the same whether closed or open...does not feel stiff...has moderate amount of tension.


please advise more about the "stiffness" of the bolt release button from Buford T. Justice


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