REM 760 sticky extraction

aaron v

aaron v

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I've recently aquired a Remington 760 (guessing 25 years old) in 308. It cycles smooth and chambers/extracts live rounds perfectly. It has to be forced to extract fired casings(nosler custom 165 gr factory loads) and shows no signs of over pressure/case deforming ect. It reminds me of shooting wally world cheap 12g ammo in my 870s and every 20 or so it sticks. But this one does it every round. Anyone else had this problem and what did you do? The nearest gunsmith is about 2.5 hours away so I'd like to see what I can do here first. Thank you for your time. Aaron
 
If you took it to a gunsmith he would polish the chamber. Pumps dont have much extraction power compared to a bolt, so if the chamber is a bit rough (not unusual for an old hunting gun), it sticks.
 
If you want to try it yourself, get a wooden dowel and wrap it in fine steel wool and give the chamber a rub. It may just have some light surface rust in the chamber.
 
Mike Webb said:
If you want to try it yourself, get a wooden dowel and wrap it in fine steel wool and give the chamber a rub. It may just have some light surface rust in the chamber.
Click to expand...
I had the same problem in a rifle a few years ago and this fix worked great! I lubed the steel wool with light oil.
 
These posted remedies require removal of the barrel. Not a big job but could pose problems for a begginner gunsmith. Try an offset chamber brush with some solvent. Most gun shops have these as Remington prescribed them for extraxction issues with the 740/742 series semi rifles. If you can pull the barrel Super Cub's suggestion would be best.

Darryl
 
A chamber re-furb( cleaning and smoothing) would be the place to start for sure.

This would be the same reason 742 semi's get called jammomatic's by some users. Usually older hunting firearms, usually second or third hand, never cleaned or stored properly, treated no better than the old master-craft lawnmower in their shed.
Check to ensure the round you mentioned is not causing slight brass flow into the ejector hole, and thus adding that little extra shear force effort required to start turning the bolt lugs open, and adding to an already somewhat weak primary extraction design. Look at the fired brass head stamp to see any signs of this.
 
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