New 870 Express not Ejecting Fired Hull

[C-Money]

Well, I did some trading at the area firearms store over the summer. I let my Browning Maxus go in the deal, and got a new 870 Express 3'' in return as part of the deal. I was very glad to have gotten an upland/waterfowl gun worked into the deal. I have been around 870s a LOT, shot one a ton as a kid, never had an issue. Thousands upon thousands of heavy waterfowl loads and I can never remember a failure with my mid 90s vintage 870 Express. This new one does fail. It is randomly not pulling an empty hull out of the barrel. Its not like they are stuck hulls either, as I can pull the barrel off and easily get the empty out with my fingernail. I have tried to file a bit on the barrel where the ejector meets the hull, and still get an ejection failure at times. Its all kinds of shells as well, waterfowl loads, dove loads, doesn't matter. With some research, I guess this is what Remington has lowered its self to. Its not an uncommon issue. But what am I missing? Is there an easy home fix to get this 870 dependable? New ejector? Take it to a gun smith? Thanks for the ideas...

[vandeman17]

Pump or autoloader? I randomly had similar issues with my nova caused by not completing a full pump of the action. Sure made me mad when it happened with birds in my face 

[C-Money]

Its a pump. And YES! I hear ya 100%! Had a pair of snows come in the other morning, and was VERY glad it cycled for me that time!

[CP]

Sounds like the ejector extractor  and/or the ejector extractor spring.  Easier fix than the shells sticking in the chamber.  Try youtube for how to fix.

[Encore 280]

Isn't there an extractor also that grabs the hull and the ejector ejects it. Maybe the extractor is the problem. I'm don't know if the newer guns have these or not, been awhile since I've been around shotguns.

[boneaddict]

That pin must be worn or gummy or something.   870 pump is one of the most dependable guns God created

[CP]

Isn't there an extractor also that grabs the hull and the ejector ejects it. Maybe the extractor is the problem. I'm don't know if the newer guns have these or not, been awhile since I've been around shotguns.

You are correct, I used the wrong term.  Fixed my post.

[Dan-o]

I am almost positive I know the problem.

I bought all three of my sons new 870's and they all had the same issue.

There was a quality control issue in the barrel manufacturing, which left some machining marks in the end of the barrel.
When shells are fired, the brass expands into these machining marks.

All of ours jammed, and all of them were easily fixed.

Here is the issue.   

I just wrapped some scotchbright around a drill bit and polished them.

They all work great after doing this.


EDIT:
This video does a better job of explaining it.
Go to 3:30 to see exactly where the machining mark is that caused all of our problems.

[Special T]

I am almost positive I know the problem.

I bought all three of my sons new 870's and they all had the same issue.

There was a quality control issue in the barrel manufacturing, which left some machining marks in the end of the barrel.
When shells are fired, the brass expands into these machining marks.

All of ours jammed, and all of them were easily fixed.

Here is the issue.   

I just wrapped some scotchbright around a drill bit and polished them.

They all work great after doing this.

This also works great for polishing the barrels.

Sent from my SAMSUNG-SM-G930A using Tapatalk

[CP]

Metal injection molded parts, poor machining, no attention to fit and finish; that’s Remington today.   Buff out their poor machining, change out their 2nd rate parts and you might have a mediocre gun that is somewhat reliable.  I’d try to get that Browning back.

[TheStovePipeKid]

I bought a Lisle 10000 brake cylinder hone and used it to hone the chambers on my Dad's Mossberg 835's. Ended up honing all my shotgun chambers just because I had the equipment. If you go this route make sure you don't go too far and alter the forcing cone. Should clean everything up nice and doesn't cost a lot.

[Bill W]

what brand ammo has issues ejecting?  I had a problem about 4 years ago with a certain brand.

[rasbo]

I am almost positive I know the problem.

I bought all three of my sons new 870's and they all had the same issue.

There was a quality control issue in the barrel manufacturing, which left some machining marks in the end of the barrel.
When shells are fired, the brass expands into these machining marks.

All of ours jammed, and all of them were easily fixed.

Here is the issue.   

I just wrapped some scotchbright around a drill bit and polished them.

They all work great after doing this.


EDIT:
This video does a better job of explaining it.
Go to 3:30 to see exactly where the machining mark is that caused all of our problems.

great post,just checked my son's new 870,it's good

[Stein]

I bought one in 1999 and it worked fine until I went duck hunting.  I replaced parts, filed parts, polished parts and it is probably 75% reliable if I keep it spotless.

You can work on them but they are what they are.  If they were reliable, there wouldn’t be forums plugged up with fix threads and a million YouTube videos.

I paid $200 on sale at GI Joes and got a $200 gun.


Sent from my iPhone using Tapatalk

[C-Money]

Winchester 2 3/4 expert steel, and Remington dove & quail are the ones that have consistently jammed. What a bummer, 870s use to be the gold standard in reliability.