Hi guys. I have a 1955 Winchester Model 12 Heavy Duck. It's in 95%+ condition but of course has sat a lot. I'm having a problem. After I fire it, the pump doesn't release. I have to push the release button between each shot. I've cleaned and lubed and cleaned and lubed but to no avail. Any ideas?
Winchester Model 12 problem
- Thread starter daaaveman
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rcmodel
Member in memoriam
Do you mean really fire it with shotgun shells?
Or dry-fire it by snapping the hammer on an empty chamber? (shudder!)
All Model 12's use an inertia action release that depends on recoil driving the forearm foreword a slight distance to release the action.
If you dry-fire it, and there is no recoil, you have to push foreword on the slide to release it.
Push foreword and you will hear it click.
Then pull it back and it will operate normally.
rc
Or dry-fire it by snapping the hammer on an empty chamber? (shudder!)
All Model 12's use an inertia action release that depends on recoil driving the forearm foreword a slight distance to release the action.
If you dry-fire it, and there is no recoil, you have to push foreword on the slide to release it.
Push foreword and you will hear it click.
Then pull it back and it will operate normally.
rc
I have had the gun for several years but just fired it for the first time recently. I was using remington 2 3/4" birdshot. The gun was my grandfather's. He told me that he had it for over 30 years and never shot it. So yes, I'm using real shells. I don't like dry-firing my guns. I haven't dry-fired this one.
I'm assuming that I have gunk/buildup in the action but I've cleaned and cleaned and haven't been able to fix the problem. I guess I'm going to break down the action and clean every part. I'd really like to understand which parts contribute to unlocking the action after the round is fired. I kinda hate to dig into the gun because all the screws are pristine. It's obviously never been disassembled.
Thanks for any help guys. This is not going to be a regular shooter by any means but I would like to take it out for some duck hunting soon.
I'm assuming that I have gunk/buildup in the action but I've cleaned and cleaned and haven't been able to fix the problem. I guess I'm going to break down the action and clean every part. I'd really like to understand which parts contribute to unlocking the action after the round is fired. I kinda hate to dig into the gun because all the screws are pristine. It's obviously never been disassembled.
Thanks for any help guys. This is not going to be a regular shooter by any means but I would like to take it out for some duck hunting soon.
highorder
Member
It sounds like you need to completely detail strip everything but the triggergroup.
It's easy. take your time, and use proper screwdrivers.
Clean, scrub, lube.
Mine was full of grime from sitting; gummy old lube, dust, etc. It's very simple, and looking at the intricacy of all the parts really takes me back. They do not make anything like that anymore.
BBBBill
Member
daaaveman said:
I'll echo what highorder said. Get the proper screwdivers for your gun. Unlike common screwdrivers, the blades of screwdivers made for guns are parallel ground and come in different widths and thicknesses. Call Brownells and speak to one of the techs to get guidance on which ones to get for the M12. Your gun will love you for it.
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