870 Question

[WNM]

Let me preface this by saying: This is going to sound dumb. Ok now that that's out of the way.....

I have an 870 express Super Mag that I hunt with. Runs like a top, no problems. I changed the stock and forearm on it and now (not all the time), after a shot it ejects the spent shell fine, but fails to pull the the second shell from the magazine tube. Sometimes it only pulls the second shell halfway, sometimes it functions properly.

Can anyone diagnose this for me? Is this "short-stroking" I never had a single malfunction with it when the wood furniture was on it, but I don't see how that would make a difference.

Feel free to point and laugh.

 

[Big-Tex]

Is the new forend binding in anyway at the bottom of the cycle? I've heard of guys having problems with new forends not working properly on the super mag. Did the new forend replace just the grip or the grip and the action bars?

 

[WNM]

Is the new forend binding in anyway at the bottom of the cycle? I've heard of guys having problems with new forends not working properly on the super mag. Did the new forend replace just the grip or the grip and the action bars?

Just the forend, action bars weren't replaced.

 

[Big-Tex]

I would check to see if it's binding up/rubbing at any point once the forend starts to overlap the action. It might need some light sanding or dremel work.

 

[SMS]

I would check to see if it's binding up/rubbing at any point once the forend starts to overlap the action. It might need some light sanding or dremel work.

Ditto...

Did you swap for factory synthetic or aftermarket?

 

[WNM]

Ditto...

Did you swap for factory synthetic or aftermarket?

Factory.

Thanks for the tip, Big Tex. I'll give it a look tonight.

 

[Rob72]

Disassemble the fore end again, and look for shiny spots on the inner surfaces. My suspicion is that(as others have said) it is bottoming out or binding on the receiver- why I usually just cut mine short.

 

[Big-Tex]

why I usually just cut mine short.

+1 I've never done it on a hunting gun, but my tacticool forend will be in this week and it's getting cut short if it over lapps at all.