Joined: 01 Jun 2006
Location: southwest desert
Hey, I don't want to sound like a arce, but, I am. The model 12 does not have a disconnect for the trigger. If you hold the trigger back; the next round chambered will fire upon closing the bolt. It was a WWI military technique. Done it myself. Take your finger off the trigger between shots!!! Good luck.
Joined: 26 Dec 2005
Location: Round Rock, TX
I'm bringing this back from the dead as I'd like to start using this gun more and haven't because of its tendency to slam fire, regardless of where my trigger finger is. Do I need to find a new trigger group, or does this one just need a good cleaning or something?
Joined: 30 Sep 2015
Location: NEW SALISBURY INDIANA
I had the same problem with my Ithaca 37, I thought maybe my finger was on the trigger even though I tried to make sure it wasn`t, turned out there was a burr on the firing pin from peening, removed it and no more slam fires.
_________________ 16ga 3-Win 37
16ga Win 12 1953
16ga Ithaca 37 1946
16ga LeFever Long Range 1937
16ga Western Auto Revelation
16ga Browning A-5 1929
16ga 2-Intrac O/U
16ga Lefever nitro special 1925
16ga Marlin 90 1939
It sounds like a very good cleaning is in order. If that doesn't do it then as Kennedy said you probably have a bad firing pin or spring. Either way it's a cheap fix even if you take it to a gunsmith. If you do it yourself parts will be available on Ebay or Numrich Arms. Good luck.
Joined: 01 Dec 2005
No Model 12 should slam fire. Not supposed to, but sometimes they do, especially older ones. I'm not sure why -- a wear issue? Feel free to enlighten me if you can. It's happened to me a few times with various Model 12's over the last 55 years.
Joined: 24 Jun 2013
Location: canandaigua - western n.y. (formerly deerhunter)
Tony , all pre 64 M12's slam fire . There is no disconnect from the trigger when pulled and action cycles . As soon as the action closes again , away the next shot goes - and the next and the next if the trigger is held back . A gunsmith here had the original patent (disconnect)and Winchester decided to NOT retro . If you know for sure your finger is off the trigger , there are 2 possibles . A broken FP or a broken return spring that can hold the FP extended out . If that's the case , it's an issue that needs addressing as the gun can simply go oiff any time the action is closed and whatever direction the gun is pointed . (all the newer Browning copies have trigger disconnects and won't slam fire - the trigger groups are NOT interchangible - tried it !)
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