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Discussion Starter · #1 · (Edited)
Went to the range today and shot around 350 rounds of the Browning 40 gr "black" bullets that run at 1255 fps as stated on the box. At the end of the double tap practice round (I shoot USPSA and I use the TX22 for bulk shooting practice as its WAY cheaper!) I saw that I was getting keyholes at 15 yards.

I meticulously clean all of my firearms each time after shooting them and I noticed that when I cleaned the barrel, I pushed out a significant amount of lead on half (one side) of the patch. I've read about folks describing chatter marks in their barrels so after a very thorough cleaning I really looked closely at my barrel. I can NOT see any chatter marks-HOWEVER-I did notice something very unusual with my years of experience building and shooting custom guns.

It's pretty obvious to an OCD person (ME! ;-) ) that the edge of three of the lands that start at the end of the chamber cast a pronounced "shadow" as compared to the rest of them. The barrel has been meticulously cleaned to include running 2 patches of Flitz just to insure that there was nothing left in the barrel and that leads me to believe that there is a discrepancy with regard to the cutting of the rifling in the barrel. The three lands that have the pronounced "edge" as compared to the others are adjacent to each other so I'm assuming it was an issue during the rifling process. I'd noticed some lead being pushed out with the first patch before but didn't think much of it at the time.

I own 4 custom 10/22's and a couple 22 target pistols and I've NEVER pushed half inch slivers of lead out of the barrel (that matched the lands) no matter HOW MUCH I've shot them.

Al, everything else I purchased from you has been awesome so if you're listening, I'm ready to buy a standard length barrel (non threaded) any time you produce one!

Copterdrvr
 

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I would send that in to Taurus for a look. Mine shoots beautifully. I'm pretty impressed with the construction of this pistol. I bet they can turn it around pretty quickly too with parts not having to come up from South America.

Thank you for the compliment, but I think it will be faster to have Taurus address it.
 

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Discussion Starter · #4 ·
I'm also impressed with the pistol and am happy with the general construction as well as the "general" accuracy but I'm always looking for the best out of what I've purchased. Yes I put a lot of rounds through it today and this is the first time I've seen any evidence of keyholes and they showed up at the end of the session. My pistol has a great trigger, never jams and is a great tool for USPSA practice.

To me it's just an indication that there apparently is an issue with some of the barrels that have been manufactured and I enjoy shooting it too much to send it back for possibly months because the groups open up after about 250 rounds of Browning (which is really Winchester) ammo.

I'll just keep shooting and cleaning it-which I do after EVERY trip to the range.

P.S. I couldn't tell you how many 22's I've owned over the years and I've NEVER had one do this.
 

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When I look down my barrel I see some of the lands more pronounced than others. I can rotate/tilt the barrel and see the same thing from different angles so it's not like a light/shadow thing playing tricks on the eye.

Is this what you are referring too?

Uploaded at Snapagogo.com

YouTube Video

 

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Discussion Starter · #6 ·
Exactly. And when I rotate the barrel the "high edges" follows the rotation. Yours is actually a bit more pronounced than mine is.

Do you find that you actually push out "slivers" of lead when you clean it after a lot of shooting?

Nice camera work by the way!
 

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When I look down my barrel I see some of the lands more pronounced than others. I can rotate/tilt the barrel and see the same thing from different angles so it's not like a light/shadow thing playing tricks on the eye.

Is this what you are referring too?

Uploaded at Snapagogo.com

YouTube Video

Wow, that's actually quite significant.

Sent from my SM-G960U using Tapatalk
 

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Exactly. And when I rotate the barrel the "high edges" follows the rotation. Yours is actually a bit more pronounced than mine is.

Do you find that you actually push out "slivers" of lead when you clean it after a lot of shooting?

Nice camera work by the way!
I've shot mostly plated stuff...no slivers but there was specs of lead on cleaning patchs

the lands also have chattering and there is longitudinal scratching down the grooves

I too liked the gun when I first got it. I have since found the rear sight to be garbage and now finding the poor rifling that will more than likely fill up with lead as you found out when you encountered keyholing. Another FU that should have never left the factory.



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Discussion Starter · #9 · (Edited)
The rest of the barrel is nicely finished with no chatter marks. The rear sight is kinda weak but My intention from the gitgo was installing a Vortex Venom which I did using a Lakelinellc base plate.

Still love the pistol and it's awesome with the Venom. I was shooting double tap drills, shooting almost continuously and was actually real close to 300 rounds when I noticed a couple keyholes. Pistol was PRETTY WARM and it was time to quit anyway.

I shoot a Canik TP9SFX with the same Vortex sight in USPSA and the TX22 is an excellent low cost alternative to shooting the 9mm and regardless of the slight leading issue I still wouldn't trade it for anything else-the grip and trigger feels A LOT like my Canik.

Not as good but close��
 

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Ok, had to have a look. Without getting out magnification, the example I have looks more even than the photos. The rifling is fairly shallow without the deeper grooves. But, with my eyes I will have to get out a measuring loupe to tell much more.
 

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.

the camera can only focus on a small area....here's a shot at the muzzle end

Uploaded at Snapagogo.com

YouTube video from muzzle end (click the YouTube logo on right bottom bar to see larger view)
Video shows rifling a little farther down the barrel than the still photo above.


 

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rws, It doesn't appear that the lands & grooves are different relative to one another, but the chatter and surface quality is pretty bad. If you are not happy with it I would send it back and ask for a replacement. If the pistol shoots well I would not worry about it and just shoot it.

The overall quality of barrels/bores over the last 20-years has gone to hell across the board with most all firearms.
 

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Discussion Starter · #14 · (Edited)
Al, only from the perspective of learning something and only using this situation as a generic example, could you explain how something like this can happen? I don't mean the chatter marks but how can the lands be cut so that they don't start out at the same "height".

I'm trying to understand this from a machining/manufacturing process and I'm not gettin' it. ��

RWS how does yours shoot? As I've said earlier, mine shoots one inch groups at 15 yards off a bag until it gets pretty dirty and that's with all the different brands I've used.

I shot 15 rounds of CCI Tactical (plated bullets) through it when I was shooting it for groups and they shot into an inch like everything else. I'd use them but problem is I go through around 500 rounds a week and the plated bullets definitely cost more than the straight lead bullets. Anyway,I'm not convinced it would make that much of a difference as the bullets aren't jacketed they're plated and it's pretty thin. I'd be curious to hear if other folks (other than the already mentioned) who saw leading decrease after using plated bullets.

RWS just saw your pics after posting-WOW! Mine looks NOTHING like that and if mine did I'd be trying to get my foot up their you know what all day long on the phone. They should be EMBARRASSED that they let that one out the door!
Copterdrvr
 

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Al, only from the perspective of learning something and only using this situation as a generic example, could you explain how something like this can happen? I don't mean the chatter marks but how can the lands be cut so that they don't start out at the same "height".

I'm trying to understand this from a machining/manufacturing process and I'm not gettin' it. ��

RWS how does yours shoot? As I've said earlier, mine shoots one inch groups at 15 yards off a bag until it gets pretty dirty and that's with all the different brands I've used.
My guess would be the chamber was not cut concentric to the bore...being off center is why you see the start of the land high on one side and hardly noticeable 180° across from it.

Haven't shot mine off the bench for accuracy yet...just been plinking with it...snow has kept me from using my range.

I'll be contacting Taurus on Monday to resolve the barrel situation.




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Discussion Starter · #16 ·
Once again, great camera work and if you send them the picture of your barrel and they don't APOLOGIZE, that does not speak well for the "new" Taurus. I can honestly say that is by far the worst looking, new manufacture, "modern" barrel I've ever seen.

If they don't just drop a barrel in a box and mail it to you first class and IMMEDIATELY, they are way wrong.

Copterdrvr
 

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I took the weapon out last week to see if would shoot the worst of the worst. Thunderbolt. It did. 300 rounds and 1 failure to eject. When I got back to the bench to clean the weapon the barrel looked like a old shot out pos. After Hoppes, Balistol and nearly an hour it was finally clean, but no more Thunderbolts. I will go back to Federal white box and CCI.
 

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I just checked mine. I've got the chattering. Is it affecting my accuracy? Who knows.
My serial number is PT0074xx. My local gun store got it from Davidson's about three weeks ago.
 

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Al, only from the perspective of learning something and only using this situation as a generic example, could you explain how something like this can happen? I don't mean the chatter marks but how can the lands be cut so that they don't start out at the same "height".

I'm trying to understand this from a machining/manufacturing process and I'm not gettin' it. ��

RWS how does yours shoot? As I've said earlier, mine shoots one inch groups at 15 yards off a bag until it gets pretty dirty and that's with all the different brands I've used.

I shot 15 rounds of CCI Tactical (plated bullets) through it when I was shooting it for groups and they shot into an inch like everything else. I'd use them but problem is I go through around 500 rounds a week and the plated bullets definitely cost more than the straight lead bullets. Anyway,I'm not convinced it would make that much of a difference as the bullets aren't jacketed they're plated and it's pretty thin. I'd be curious to hear if other folks (other than the already mentioned) who saw leading decrease after using plated bullets.

RWS just saw your pics after posting-WOW! Mine looks NOTHING like that and if mine did I'd be trying to get my foot up their you know what all day long on the phone. They should be EMBARRASSED that they let that one out the door!
Copterdrvr
I don't know how they rifle these barrels. If they are "button rifled" this is a good link about the process: https://absolutemachine.com/what-is-button-rifling/

There is a rifling button and a finishing button. They can sometimes be on the same tool. I haven't seen this process, but a defect in either tool could cause such a thing. If the barrel hardness wasn't uniform for some reason, that might cause issues too.

Most .22s I an aware of how they are made are button rifled.
 

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I contacted Taurus Customer Support this morning about the barrel. They provided a shipping label and I've sent the TX22 in.
 
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