Attn. Dave McC 870 help needed

It is what I thought. In my "free from the web manual", it is on page 13, figure 17. It does not call it a locking notch but I'm sure we're talking about the same thing, I think.
There is a dished out section of the barrel that is referred to in the manual with a picture that says "Remove shooting residue". This is not the notch, is it?
This would be the area where the top front edge of the shell hits and is guided into the chamber. If this is where the shell is hanging up then you've likely got a problem with the barrel.
A quick barrel swap will tell you if this is the problem, unless it is the reciever itself that is affecting where the barrel seats. Again, swapping a "working" barrel to the bad gun and swapping the "bad" barrel to a good gun will give you a little more info.
The beauty of 870's is the ability switch parts around.
Keep us posted,
Mike
 
Mike wrote, "This is not the notch, is it"?

Thats it!!!
Just ahead of it is where it is hitting. Im gonna see if I have time this weekend and run shells through it with another barrel on it.
Will keep you posted..

Scott
 
SFS -

I'm looking at my Wingmaster and my Express Mag right now. I see exactly what you are talking about. I was able to get both of the 870's to pseudo-jam much in the same way yours is, by racking the action verrrrry slowly.

Excuse me while I attempt to explain what's going on in laymen's terms. (There's armorer's manuals for these things?!? :D )

When the floorplate/flipper dohicky releases the shell upon entry to the chamber, the only thing keeping the correct angle on the entering shell is the forward motion of the bolt and the "dished out" section of the barrel y'all talked about. As the forward motion of the bolt continues, the shell base slides up the bolt face, completely engages into the extractor, and is flush to the bolt face as the shell enters the chamber.

The key element in that scenario is the shell base's slide up the bolt face. If anything impedes that progress, the shell will "hang" at the wrong angle, much in the way you describe, and catch on the top of the chamber edge. The "dished out" section of the barrel is not to provide the angle, it's to make room for the angled shell. What I'm saying is, it's tempting to polish that part, as a guess of what the problem might be, but it's not the problem.

So if it's not the dished out part, there's only 2 other problematic areas - the bolt face and the extractor.

Check your extractor. Best way to check it, since you have another 870, is to simply swap out the entire bolts.

Good luck.
 
Hey Guys Thanks for all your help and advice..

Tha problem with the gun was never solved, the gunsmith could not find anything wrong with the shotgun, (But he never had the chance to take it out and shoot it either). He believed it may have been the way I was pumping it... I don't believe so considering I have never had a problem with my 870 Express or my friends 870 WM or Express.

Anyways, I traded the gun in towards a rifle I have on lay-away.
They gave me $300.00 for it... Hell I only paid $250.00 for it..

I still have one 870 and will be picking up a used 11-87 or a Beretta sometime in the near future..
 
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