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Unsolved 10-22 Mystery - help solve it!
3/29/2012 7:05:54 PM
I have a 10-22 with a Green Mountain 16.5" fluted bull barrel, Bentz chamber.
It will not hardly shoot a full mag without a misfire. Used different mags, 10s and 25s, and ammo types, still misfires.
I changed out all the internals from another 10-22 that runs flawlessly, bolt group, trigger assembly, troubled gun was still misfiring.
(I even took the internals from the troubled gun and put in another receiver and they worked just fine, no misfires at all).
If I take out the mag and close the bolt after it misfires it will discharge that misfired round every time.
Before, with the factory barrel, there was no problems.
I have yet another 10-22 with the same type barrel - both bought at the same time from same vendor - and I have no problems with it.
(It's been a couple of years since bought, had the troubled gun tucked back as a spare, just never took it out before now.)
Is it possible there is a headspace issue?
Maybe the barrel needs truing?
What's the consensus?
It will not hardly shoot a full mag without a misfire. Used different mags, 10s and 25s, and ammo types, still misfires.
I changed out all the internals from another 10-22 that runs flawlessly, bolt group, trigger assembly, troubled gun was still misfiring.
(I even took the internals from the troubled gun and put in another receiver and they worked just fine, no misfires at all).
If I take out the mag and close the bolt after it misfires it will discharge that misfired round every time.
Before, with the factory barrel, there was no problems.
I have yet another 10-22 with the same type barrel - both bought at the same time from same vendor - and I have no problems with it.
(It's been a couple of years since bought, had the troubled gun tucked back as a spare, just never took it out before now.)
Is it possible there is a headspace issue?
Maybe the barrel needs truing?
What's the consensus?
3/29/2012 7:36:41 PM
Take the barrel off. Get a box of your fav. 22lr ammo and try to hand load it into the barrel. I bet youll find some wont even get the bullet in, let alone the whole shell. Find your tightest shell and then take some FLITZ polish and a dremal and micro polish the throat area til the round fits in easy.
I had to do this with a green mountain barrel and never had any misfires or issues.
I had to do this with a green mountain barrel and never had any misfires or issues.
3/29/2012 8:09:12 PM
Have you dry-fired it much? I've seen 22's get dry-fired to the point that there was an indentation in the barrel which prevented the firing pin from sufficiently striking the rim. Or am I completely missing what you meant in your post? Out of battery discharge? or Failure To Fire?
3/29/2012 9:46:26 PM
No, I don't dry fire my .22s. And this barrel probably has about 150 rounds through it. No stovepipes, no fte.
Bolt could have been oob - when misfires occurred I would pull the mag, visually check for obstructions close the bolt and fire. Always went bang the second time.
Bolt could have been oob - when misfires occurred I would pull the mag, visually check for obstructions close the bolt and fire. Always went bang the second time.
3/30/2012 10:29:48 AM
My problem sounds close to the op. I get feed jams where the bolt stops with the cartridge halfway into the barrel. Cartridge is often at an up angle and when removed I see the bullet is crooked in the case like it was deformed while trying to feed into the barrel. You might check the missfire ammo to see if it is being deformed and knocked out of round. A bent round won't chamber completely all the time.
I got a tip that the extractor could be fitting so tight that it does not allow the case rim to slide under it and so my bullets are tying to enter the barrel at an angle and get bent rather than feed. The advise was to fit the extractor. I ground a bevel on on the bottom of the extractor to help rims slide under it and need to go test it. Rimfirecentral forum is where I looked for help.
I got a tip that the extractor could be fitting so tight that it does not allow the case rim to slide under it and so my bullets are tying to enter the barrel at an angle and get bent rather than feed. The advise was to fit the extractor. I ground a bevel on on the bottom of the extractor to help rims slide under it and need to go test it. Rimfirecentral forum is where I looked for help.
3/30/2012 3:50:05 PM
All the misfired rounds stripped out of the mags and chambered without jamming (had that problem on another 10-22 and changed extractor for the fix).
3/30/2012 7:35:06 PM
IIRC, the 10/22 bolt is designed with a recessed bolt face, so dry firing shouldn't be a problem.
3/30/2012 8:48:43 PM
Originally Posted By die-tryin:
Take the barrel off. Get a box of your fav. 22lr ammo and try to hand load it into the barrel. I bet youll find some wont even get the bullet in, let alone the whole shell. Find your tightest shell and then take some FLITZ polish and a dremal and micro polish the throat area til the round fits in easy.
I had to do this with a green mountain barrel and never had any misfires or issues.
Take the barrel off. Get a box of your fav. 22lr ammo and try to hand load it into the barrel. I bet youll find some wont even get the bullet in, let alone the whole shell. Find your tightest shell and then take some FLITZ polish and a dremal and micro polish the throat area til the round fits in easy.
I had to do this with a green mountain barrel and never had any misfires or issues.
I would agree with this.
The round is probably not fully chambered, the hammer falls and pushes the bolt and cartridge forward. Since there is not solid lockup, the firing pin strike is light.
3/31/2012 3:07:54 AM
They did have some barrels with bad chambers.
They were to loose.
They were to loose.
3/31/2012 3:18:56 PM
Originally Posted By mike_nds:
I would agree with this.
The round is probably not fully chambered, the hammer falls and pushes the bolt and cartridge forward. Since there is not solid lockup, the firing pin strike is light.
Originally Posted By die-tryin:
Take the barrel off. Get a box of your fav. 22lr ammo and try to hand load it into the barrel. I bet youll find some wont even get the bullet in, let alone the whole shell. Find your tightest shell and then take some FLITZ polish and a dremal and micro polish the throat area til the round fits in easy.
I had to do this with a green mountain barrel and never had any misfires or issues.
Take the barrel off. Get a box of your fav. 22lr ammo and try to hand load it into the barrel. I bet youll find some wont even get the bullet in, let alone the whole shell. Find your tightest shell and then take some FLITZ polish and a dremal and micro polish the throat area til the round fits in easy.
I had to do this with a green mountain barrel and never had any misfires or issues.
I would agree with this.
The round is probably not fully chambered, the hammer falls and pushes the bolt and cartridge forward. Since there is not solid lockup, the firing pin strike is light.
I agree with this too as I have fixed many 22 barrels with a rough chamber that causes the live rounds to stick.
3/31/2012 4:57:25 PM
I had OOB malfunctions on another .22lr rifle caused by displaced metal in the chamber from dry firing. I found the cheaper round chopsticks with a slot cut on the thicker end and 1000 grit wet sand paper wrapped around it fits perfectly in a .22lr chamber. I sprayed some gun oil on the paper and twisted it to polish the chamber until rounds slid in and out freely without removing too much material.
3/31/2012 8:51:57 PM
As a general rule keep your dremel tool in a different room from your firear
That being said your chamber could be tight or dirty a little hand polishing should help
That being said your chamber could be tight or dirty a little hand polishing should help
4/3/2012 11:03:31 AM
This is not by experience or anything but.
Did you remember to put the firing pin spring back in when you reassembled the bolt. That is if you took it apart.
Did you remember to put the firing pin spring back in when you reassembled the bolt. That is if you took it apart.4/3/2012 1:42:52 PM
What do the primer strikes from the firing pin look like? Nice healthy ones?
4/4/2012 10:27:37 PM
Originally Posted By anomad:
What do the primer strikes from the firing pin look like? Nice healthy ones?
What do the primer strikes from the firing pin look like? Nice healthy ones?
I didn't pull any of the struck-but-unfired ones out to check.. DOH!
I'll try again this weekend and see.
Also, bolt was not disassembled, and worked just fine when put in another 10-22.
