Boomstick Bruce Posted June 30, 2019 Share Posted June 30, 2019 So, my model 12 is a 3" gun. And as y'all know, the 3" guns don't like to run fast. If I try to run it faster that 1 round per second it doesn't feed right. How do I fix this? Can it be fixed? Hold it in my right hand and sell it with the left? I'd hate to part with it, I'm sure it was never fired before I got it and still looks brand new. Quote Link to comment Share on other sites More sharing options...
Two Dot Posted June 30, 2019 Share Posted June 30, 2019 Find a 2 3/4 inch lifter. That usually does the trick. Quote Link to comment Share on other sites More sharing options...
August West Posted June 30, 2019 Share Posted June 30, 2019 There is iron in Two Dot's words. Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 1, 2019 Author Share Posted July 1, 2019 Awesome! I thought that my solve the issue. Thanks! Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 1, 2019 Author Share Posted July 1, 2019 Does it matter which carrier I get? I see ads for early and later models, mine is 1950 and it has the flag. Can I take the flag off mine and put it on the new carrier if it doesn't have one? Thanks! Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 1, 2019 Share Posted July 1, 2019 If the new carrier isn’t made for a flag, it would need machined. I don’t use a flag. Just one more part to get in the way. You also need a 2 3/4” bolt, which I have. Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 1, 2019 Author Share Posted July 1, 2019 If the new carrier isn’t made for a flag, it would need machined. I don’t use a flag. Just one more part to get in the way. You also need a 2 3/4” bolt, which I have. What's the difference in the bolts? I have a buddy's model 12 torn apart right here next to mine to swap the guts and see if that solves my problem and other than his bolt is "patina" and mine isn't, I can't tell the difference between the two Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 2, 2019 Share Posted July 2, 2019 Biggest difference is square face and round face. Second is the cartridge stop on the bottom. I’ll see if I can send a pic. Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 2, 2019 Author Share Posted July 2, 2019 Yeah, I see the difference in the face now. Mine also has a lug that locks into the barrel that the 2 3/4" gun doesn't have. Good news is I may be trading a Mossberg 500 for a 1940's model 12!!! What I don't understand is why my buddy's 2 3/4 gun loads and chambers 3 inch shells but my 3 inch gun doesn't like 2 3/4 shells... Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 2, 2019 Share Posted July 2, 2019 I’d like to see pics of your bolt. I can’t seem to post any here. Trading off that Mossberg for a 12 would be good. Quote Link to comment Share on other sites More sharing options...
Garrison Joe Posted July 2, 2019 Share Posted July 2, 2019 I don't understand why my buddy's 2 3/4 gun loads and chambers 3 inch shells Couple of common reasons, both bad news: Someone lengthened the chamber (or installed a 3" chambered barrel) Gun is heavily worn and chamber has been blown out so that now 3" shells chamber. I got one with a blown chamber, and had it sleeved by a gunsmith who has now passed on. Is his ejection port large enough to cleanly pass 3" fired shells? Sometimes "gunsmiths" "fixed" that also if they lengthened the chamber. Good luck, GJ Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 2, 2019 Share Posted July 2, 2019 I don't understand why my buddy's 2 3/4 gun loads and chambers 3 inch shells Couple of common reasons, both bad news: Someone lengthened the chamber (or installed a 3" chambered barrel) Gun is heavily worn and chamber has been blown out so that now 3" shells chamber. I got one with a blown chamber, and had it sleeved by a gunsmith who has now passed on. Is his ejection port large enough to cleanly pass 3" fired shells? Sometimes "gunsmiths" "fixed" that also if they lengthened the chamber. Good luck, GJ A 3” shell will easily drop into a 2 3/4” chamber as most 3” shells are only around 2 5/8” long when crimped. It’s only when fired that it’s too long for a 2 3/4” chamber. Saved a screenshot. No need to go edit it. Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 2, 2019 Share Posted July 2, 2019 Yeah, I see the difference in the face now. Mine also has a lug that locks into the barrel that the 2 3/4" gun doesn't have. Good news is I may be trading a Mossberg 500 for a 1940's model 12!!! What I don't understand is why my buddy's 2 3/4 gun loads and chambers 3 inch shells but my 3 inch gun doesn't like 2 3/4 shells... 3” shells cycle through my 2 3/4” guns like they were made for them. But I am certain the chambers are only 2 3/4”. It’s because of the crimped length. Just don’t fire them! Quote Link to comment Share on other sites More sharing options...
Garrison Joe Posted July 2, 2019 Share Posted July 2, 2019 You're right, here's another good explanation from Shotgun World forum: Do not, on any gauge, be mislead because you can drop a 3” shot shell into the chamber of a 2¾” gun. An unfired 12 ga. 3” shell is only about 2¾” in length and will drop into the chamber of a 2¾” gun because the chamber is sized for an opened up shell case not a closed one. Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 4, 2019 Author Share Posted July 4, 2019 So I discovered 2 things today... 1. the lifter/carrier I ordered is for a 3" gun. 2. The screw that holds it in is left hand thread.. (broke two screw driver bits before I figured it out) I have another lifter on the way. This one is definitely the right one... I hope...lol... Quote Link to comment Share on other sites More sharing options...
Boggus Deal Posted July 4, 2019 Share Posted July 4, 2019 If not, let me know. I have a couple. Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 7, 2019 Author Share Posted July 7, 2019 will do, im still waiting for the one i ordered to be shipped so put my buddy's 2 3/4 lifter in my gun and it seams to run fine, i haven't tested it with live ammo yet, just dummy rounds. why do i need to change the bolt? other than the face they appear to be the same Quote Link to comment Share on other sites More sharing options...
Boomstick Bruce Posted July 13, 2019 Author Share Posted July 13, 2019 The saga continues: Got the new lifter, it's been jeweled and is gorgeous!!! Removed the old flagged 3" lifter and installed the new non flagged 2 3/4" lifter. Solved my old problem but created two new ones. First the gun is much harder to close with the new lifter in it. Second now the shells are jamming up against the front part of the ejection port when I cycle it fast. To remedy problem one, I disassembled both guns, and I compared the 2 3/4 bolt to my 3" bolt. I noticed the channel that the operates the lifter on the 3 inch gun is much more angled than the 2 3/4 bolt. So I got out my trusty Dremel and got to work reshaping the channel. SUCCESS! gun is much smoother to operate than before and it's actual smoother than the other one! Next I removed the flag from my old lifter, took some measurements and got out the trust Dremel again and went to work. After about an hour of grinding, filing and sanding, I now have a flagged lifter. Now the gun is slick as glass and I can hold it with the ejection port facing the ground and it cycles as fast as I can cycle it!! Monday I'm going to the range and doing a live fire test. I don't foresee any more trouble with the gun now but if I do, I'm selling the damn thing...lol... Quote Link to comment Share on other sites More sharing options...
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