870 EJECTS WEAKLY

[BPTactical]

It sure seems like remington dosent give a shit any more, lots and lots of problems in the last 5 years.

Your time frame is correct. 2008 Freedom Group A.K.A Cerebus Holdings purchased Remington, Bushmaster, DPMS and a couple others plus a couple of ammo manufacturers.

[bellavite1]

Uhmm, no thanks.........


But do let us know if the extraction problem is cured though.........

Extraction was never an issue (thank God!).
Ejection was lame, but it looks like we got that figured out.

[Blowby]

The chamber is usually under size and not surface finished properly. This is what I recommend if you are not comfortable being your own gun smith.

• Polish the chamber with 0000 Steel wool and oil. Wrap it on a wood dowel attached to a drill. In and out, wipe clean and insert a "used" shell to drop out with gravity.
• If you need to remove more than this a brake caliper hone (link) with plenty of oil and a few back and forth passed, steel wool, check drop out w/ shell.

870 with loading and extracting issues. Blasted quite a few shells to heat the 870 up and have the issues show up. Be patient and when it's running smooth you will never give it up.

• Action bar is not pushing shell release back enough at open stroke.
• Found casting step under action bar on shell release side, filed, OK now.
• Action bar nut was loose, blue loctite.
• Deburr action bars
• Adjusted action bars to slide smooth.
• Polished chamber.
• Removed metal from stock bolt that entered bolt chamber (Bolt hitting on open stroke).
• Removed metal from sled hitting back of bolt chamber.
• Found the hood lock edge not chamfered - fixed
• Slide release area for trigger lock smoothed (Minimal removal for saftey)
• Found that shell is recessed below barrel edge. Breech bolt hitting causing burr.
• Checked recess for shell ring and removed overhang burr and broke sharp edge of undercut
• Filed and stoned perpendicular to bore until shell is slightly above barrel edge .005".

Smooth as silk and instant pump/fire when needed.

[BPTactical]

^^^ Good post and info!