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  #1  
Old 05-29-2019, 10:50 AM
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Barrel MFG?



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Would anyone happen to know the manufacture of this barrel? They have no markings at all on them. I found a good deal on them and wondered if they would be worth picking up.

14" length
Hammer forged
14 twist
1" diameter at muzzle

https://imgur.com/a/OHIxMVZ

Last edited by 96stroke; 05-30-2019 at 12:54 PM.
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Old 05-29-2019, 03:51 PM
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Quote:
Originally Posted by 96stroke View Post
Would anyone happen to know the manufacture of this barrel? They have no markings at all on them. I found a good deal on them and wondered if they would be worth picking up.

14" length
Hammer forged
14 twist
1" diameter at muzzle

https://photos.google.com/album/AF1Q...W-JxIOT3p-dt5l
Your link is bad.
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  #3  
Old 05-30-2019, 12:54 PM
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Updated link
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Old 05-30-2019, 03:26 PM
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Originally Posted by 96stroke View Post
Updated link
No idea where that came from. I'd worry about it coming out of a scrap bin. 14" is an odd length for an unfinished blank. Most smiths would want to take an inch or 2 off of each end before doing anything with it. I'd also want to know if has been honed and/or stress relieved. Odd twist rate for rimfire too.
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Old 05-30-2019, 04:16 PM
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pistol barrel blanks , definitely not designed for any rimfire -
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Old 05-30-2019, 05:43 PM
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Originally Posted by schutzen-jager View Post
pistol barrel blanks , definitely not designed for any rimfire -
Nothing about the OP's description makes any sense. 14 twist wouldn't kill a RF rifle shooting heavier/slower bullets but even faster twist would be better for subs. At 14" unfinished you would stuck building 10"-12" SBR/Pistol builds. Just a wild guess... Maybe they were made as 22 Caliber centerfire blanks but didn't pass QC and were cut in half to make useless. 12-14 twist is commonly used for 40-50 grain 22 cal centerfire cartridges.
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Old 05-30-2019, 06:57 PM
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Not CF, measured bore and it is a 22lr rimfire blank. They have not been cut either, or if they were they were done on a lathe. No chamber cut and covered in cosmoline.
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Old 05-30-2019, 07:38 PM
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Originally Posted by 96stroke View Post
Not CF, measured bore and it is a 22lr rimfire blank. They have not been cut either, or if they were they were done on a lathe. No chamber cut and covered in cosmoline.
What was cut in/on a lathe? I cannot say p-----g up a rope without insulting the mods but that is what you are doing.
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Old 05-31-2019, 08:55 PM
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Guess he's gone. He didn't hear what he wanted to hear.
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Old 06-03-2019, 12:25 PM
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I'm here, just don't see the need to state more of the obvious.

Muzzle end would have to be the end cut with lathe, if it was, as the chamber end still has the hammer forge directional marks on it.
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Old 06-03-2019, 04:24 PM
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Originally Posted by 96stroke View Post
I'm here, just don't see the need to state more of the obvious.

Muzzle end would have to be the end cut with lathe, if it was, as the chamber end still has the hammer forge directional marks on it.
The turned section of the big end was turned before the blank was hammered not after. The machined section wasn't hammered and more than likely would have been removed if if whoever forged your barrels would have finished them. Look at minute 8:41 of this video where the robot is taking the hammered blank out of the machine> https://www.youtube.com/watch?v=oALJDh43K3I Look familiar? You said you measured them. How did you measure them? What is the bore/groove diameter?
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Old 06-04-2019, 07:25 PM
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As I expected. Getting quite here!
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Old 06-04-2019, 08:22 PM
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I read an article talking about how quite a few 22 pistols used 14" twist barrels. It was apparently a common thing - for example Clark used 14" twist standard on their 22 match barrels. That would make it all make sense.... a 14" long blank would give somebody two finished 6" barrels or the ability to do any length out to 13" and still have plenty of meat to cut off the bad parts at the ends. The diameter would allow plenty of meat to match a factory barrel on a revolver or semi-auto.. Either a rectangle profile or round/tapered and have room for barrel sights

Edit to add - I just checked my Marlin and it's 14" twist - not the commonly quoted 16" twist. That's probably why it stabilizes Aquila SSS just fine. So it could well be somebody's factory standard barrel blanks that somebody cut down for pistol use...

The thing is - there's no way to tell who made them unless they have some factory markings on them. I would call Numrich and see if they have any records they can share about where they came from and when.... But they may not be able to share that for legal reasons.... Often as not - stuff like that gets all it's markings removed as part of the process of converting it to an aftermarket/surplus.

Last edited by truckjohn; 06-04-2019 at 08:46 PM.
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Old 06-04-2019, 08:49 PM
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GH41, guess I will have to lay it all out for you as you obviously just want to argue.
1. Some of us have jobs that don't allow for 24/7 internet access
2. I am fully aware of how a barrel is hammer forged. If you will look at the pictures, the marks on the large end, END, precisely align with the hammer forge die indention on the OD indicating the direction for the machine to line them up and yes the OD of the barrel is larger as it has to be in order to forge it down. Should I state the conservation of mass to you and state that as the barrel shrinks in OD that it will get longer, so yes it probably started out at 10-11 inches and 1.5 inch OD to end up with a tapered 14 inch barrel with a 1 inch OD at the muzzle.
3. As for what is cut on a lathe, if we know that the OD is hammer forged (still has marks on it) minus the chamber end long enough for the machine to hold it, we have established that the chamber end is unaltered due to OD and hammer die marks, and post #4 you stated that they would be cut down by 2 inches for most smiths; that means that the 2 inches would have HAD to come off the muzzle end of the barrel. If you will again refer to the pictures, the muzzle is lathe turned. Put all this together and if they were cut, they were cut on muzzle on a lathe.
4. I used CERROSAFE and slugged the barrel to get bore and grove diameters. I pored it (about 1 inch slug as had barrel plugged with a cleaning patch) and then immediately removed it after solidification, and then waited 1 hour at room temperature for it to return to exact dimensions of the barrel for measurement. Yes this is per the metallic properties of the material and the exact method the manufacture specifies. It measures .215 bore and .222 grove, reinforcing the fact it is a 22 rimfire barrel not centerfire. I used a cleaning rod with patch and a green masking tape flag to the the twist rate, just in case you wanted all the details on that also.
5. 1:14 twist may not be common, but it is not uncommon. After doing more research (since you sir certainly were not helpful), 1:14 is rather standard for pistol barrels and any bullet up to 50 grn. Shilen stated that more than likely these were for custom Thompson Center Contender barrel blanks for a smith to finish out. As a side note, 1:14 twist is also common for building special purpose suppressed rifles for subsonic ammo.
6. Nothing that you have stated helps establish the original question of who make these. Some manufacturers have unique features that automatically stand out to certain people, hence why I asked here.

Last edited by 96stroke; 06-04-2019 at 08:53 PM.
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  #15  
Old 06-04-2019, 08:51 PM
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Quote:
Originally Posted by truckjohn View Post
I read an article talking about how quite a few 22 pistols used 14" twist barrels. It was apparently a common thing - for example Clark used 14" twist standard on their 22 match barrels. That would make it all make sense.... a 14" long blank would give somebody two finished 6" barrels or the ability to do any length out to 13" and still have plenty of meat to cut off the bad parts at the ends. The diameter would allow plenty of meat to match a factory barrel on a revolver or semi-auto.. Either a rectangle profile or round/tapered and have room for barrel sights

Edit to add - I just checked my Marlin and it's 14" twist - not the commonly quoted 16" twist. That's probably why it stabilizes Aquila SSS just fine. So it could well be somebody's factory standard barrel blanks that somebody cut down for pistol use...

The thing is - there's no way to tell who made them unless they have some factory markings on them. I would call Numrich and see if they have any records they can share about where they came from and when.... But they may not be able to share that for legal reasons.... Often as not - stuff like that gets all it's markings removed as part of the process of converting it to an aftermarket/surplus.
Thanks truckjohn. I think I have concluded that these were probably TC Contender blanks intended to be finished by a smith. I agree that it is a long shot on the MFG, but figured I would ask.
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