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 Post subject: Sportsman 48 jams going back in to battery
PostPosted: Thu Feb 13, 2020 4:10 pm 
Limited Edition

Joined: Wed Nov 30, 2016 6:04 pm
Posts: 402
I recently acquired a 12g Sportsman 48 and actually love the gun. But twice now in 200 or so rounds it has jammed returning to battery.

The first time I was actually testing to see how it did with light loads (not very well). It seemed like obviously not enough energy. The bolt froze up in the receiver, and I had to remove the barrel and trigger to get it loose.

Then I went and shot 4 rounds of skeet no problem. The 5th, on the last shot, I dropped a shell in the port, pressed the release button and the bolt came forward about an inch and froze tight. Wouldn't move forward or back.

My next move is to strip it again and this time disassemble the action spring in the stock. Maybe something is gummed up in there - I didn't break that open when I cleaned it after buying.

Anything else folks would recommend I check?

Thanks




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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Thu Feb 13, 2020 7:02 pm 
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Joined: Wed Nov 30, 2016 6:04 pm
Posts: 402
FWIW - it would seem one of the legs of the wishbone managed to jam itself beside the cup for the recoil spring.

I have not quite worked out where enough slack came from to let the leg out of the cup. My best guess is 1) the cup was partially full of goop, and 2) the cup maybe wasn't moving quite as quickly as it should because of 60 yrs of gunk in the tube. So i cleaned that up and we'll see if things go better.


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Fri Feb 14, 2020 12:32 am 
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Joined: Fri Mar 30, 2018 2:54 pm
Posts: 294
I don't have one but I have seen a few that were very affordable , never know when one will adopt Me. It is interesting to see how this works out. :) .


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Fri Feb 14, 2020 8:33 am 
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Joined: Wed Nov 30, 2016 6:04 pm
Posts: 402
I'm partial to recoil and inertia shotguns over gas operated to begin with, but I've been really impressed by the 48. Very few moving parts, very little to clean.

Mostly I wonder what might have worn to create enough play to let one of those legs out of the action spring cup. Nothing particularly obvious.


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Mon Feb 17, 2020 7:44 am 
*Proud to be a*
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Joined: Tue Mar 30, 2004 10:25 pm
Posts: 2394
Location: NW, CT
I just got one running I bought from a fellow member. 16 gauge.
If the action spring were sticking, I could see that link jumping out. Is your action spring plug made of wood too? This was only the second gun I found with a wooden action spring plug.
I too was surprised at its simplicity. Way easier than disassembly of an A5 or a Model 11.

Jim


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Mon Feb 17, 2020 6:10 pm 
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Joined: Wed Nov 30, 2016 6:04 pm
Posts: 402
The spring plug was made out of wood - surprised me frankly.

I took it all down, ran a .45 brush through the tube, spritzed the spring with brake cleaner, and cleaned everything up. Then gave the spring a light coat of remoil and put it all back together.

It worked flawlessly for 100 sporting clays and 25 skeet this weekend.

Based on the condition it was in when I bought it, it's possible it had never really been cleaned. The receiver was full of sludge. I might have dislodged/dislocated something when I was brushing out the receiver.


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Mon Feb 17, 2020 6:41 pm 
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Joined: Thu Dec 05, 2013 7:11 am
Posts: 4018
Location: Western Tampa, FL
Win50 wrote:
I'm partial to recoil and inertia shotguns over gas operated to begin with, but I've been really impressed by the 48. Very few moving parts, very little to clean.

Mostly I wonder what might have worn to create enough play to let one of those legs out of the action spring cup. Nothing particularly obvious.


FWIW, I have heard of the cup itself getting worn around the edges that would allow the link to jump or slip out. This was on 1100s but the possibility is the same on the 11-48.


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Fri Feb 28, 2020 12:06 pm 
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Joined: Thu Oct 09, 2003 4:31 pm
Posts: 2537
Location: Virginia
I had this problem on a Sportsman 48 and solved it by wrapping fine copper wire around the end of the links to keep them together. That was over 10 years ago and it hasn't misbehaved since.


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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Fri Feb 28, 2020 6:42 pm 
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Joined: Mon May 19, 2008 8:20 pm
Posts: 14188
Location: Williamsburg, Virginia
If you keep the spring and tube in the stock cleaned and lightly lubed no slack will occur to let the legs jump out of the cup.

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 Post subject: Re: Sportsman 48 jams going back in to battery
PostPosted: Sun Mar 01, 2020 8:49 pm 
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Joined: Wed Nov 30, 2016 6:04 pm
Posts: 402
So far so good - stripped it, pulled the spring and plug, cleaned the gunk out of the cup, cleaned everything out, lightly oiled, and back together.

150 rounds later no issues with that one.. A Mohawk 48 jumped out at me, in better shape, but it seems to have a problem getting the shell out of the tube. I'll have to take that apart and see what's what.




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