11-87 20 ga won't eject shell

[dabear]

I been shooting trap and sporting clays with the 11-87 20 ga for last two years. Last night was first time it wouldn't eject the shells. I shot two boxes and had to manually eject each one. We usually go though four boxes. I was using the remington sport loads 2 3/4, 2 1/2 dram eq, 7/8 shot. I've used in the past with no problems. she gets cleaned and lubed after every use.

Any help trouble shooting the problem would be appreciated.

[G-forceJunkie]

Clean and lubed? Time to replace the piston seals?

[SLO1911Fan]

Piston seal or dirty gas holes. We had a bunch of shotguns at the trap range I worked at go down with both those issues.

[ysr_racer]

Yep, and wipe down the mag tube with lube and shoot it wet.

[foxtrotuniformlima]

Does it try to eject but without enough energy to get the job done or does the bolt not move?

The gas ports need to be cleaned out with a small drill bit to remove the build up of carbon.

[Thefeeder]

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I'll second on cleaning the gas port.....use the drill bit with your fingers. Should do the trick