Problem with S&W 1000 semi auto shotgun

Hoosier_Daddy · January 20, 2013, 10:17 AM

My neighbor inherited his father in law's S&W 1000 12 gauge 3" chamber semi auto shotgun. Not the new made by Howa version, this is a 30 year or older version. It is clean, and it looks like it has hardly been used.
We were out at my club practicing trap and immediately noticed that it would not eject and reload on its own. No problem manually ejecting and reloading.
He was using Remington "GUN CLUB" 2-3/4" #8 shot shells. Those 2-3/4" shells cycled fine in my Rem. 11-87 with 3" chambering. I had him try the Federal Gold Medal 2-3/4" 1140 ft/sec. #8 shells I was using and still his shotgun gun would not eject and reload on its own. The bolt never appeared to try to eject.
Anybody familiar with the inner workings of this S&W and what to look for as the problem(s)? I assume there is a gas piston in the workings somewhere. If you could guide us to diagrams on the typical internal design, we would appreciate that more than you know.

Dfariswheel · January 20, 2013, 07:48 PM

A common problem with these is aging "O" rings in the gas system.

Here's an owner's manual:

http://stevespages.com/pdf/s&w_1000.pdf

Here's a schematic and parts:

http://www.gunpartscorp.com/Manufact...1000-41245.htm

Here's more parts:

http://lsgmfg.com/

Hoosier_Daddy · January 20, 2013, 08:19 PM

Thank you!!!!

January 20, 2013, 10:17 AM	#1
Hoosier_Daddy Senior Member Join Date: January 27, 2011 Location: Lower Michigan Posts: 163	Problem with S&W 1000 semi auto shotgun My neighbor inherited his father in law's S&W 1000 12 gauge 3" chamber semi auto shotgun. Not the new made by Howa version, this is a 30 year or older version. It is clean, and it looks like it has hardly been used. We were out at my club practicing trap and immediately noticed that it would not eject and reload on its own. No problem manually ejecting and reloading. He was using Remington "GUN CLUB" 2-3/4" #8 shot shells. Those 2-3/4" shells cycled fine in my Rem. 11-87 with 3" chambering. I had him try the Federal Gold Medal 2-3/4" 1140 ft/sec. #8 shells I was using and still his shotgun gun would not eject and reload on its own. The bolt never appeared to try to eject. Anybody familiar with the inner workings of this S&W and what to look for as the problem(s)? I assume there is a gas piston in the workings somewhere. If you could guide us to diagrams on the typical internal design, we would appreciate that more than you know.

January 20, 2013, 07:48 PM	#2
Dfariswheel Senior Member Join Date: May 4, 2001 Posts: 7,478	A common problem with these is aging "O" rings in the gas system. Here's an owner's manual: http://stevespages.com/pdf/s&w_1000.pdf Here's a schematic and parts: http://www.gunpartscorp.com/Manufact...1000-41245.htm Here's more parts: http://lsgmfg.com/

January 20, 2013, 08:19 PM	#3
Hoosier_Daddy Senior Member Join Date: January 27, 2011 Location: Lower Michigan Posts: 163	Thank you!!!!