What happened to this barrel?

[KahrMan]

So I picked up a sporterized Springfield 1878 Trapdoor to play around with. What was done to the end of the barrel to make that line?
 
The plan is to use it as a single shot hunting rifle if it is accurate enough.
 




 
 
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[Garufa]

Looks like Bubba soldered on a barrel esstention. 

I've seen a lot of things but never a trapdoor done that way.

Edited May 21, 2017 by Garufa

[Sam1]

just throwing a wild guess out there, but maybe it's from being in a  rack?  Other guess would be whoever put the front sight on maybe had it cranked into a vice of sorts and it rolled around on them when punching out the original post.

 

[KahrMan]

It is only on the outside. There is not a seem inside the barrel so I don't think it was cut there.


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[Ronald_55]

I see online that it could have a front sight cover.

Maybe someone pulled one off it. The barrel discoloration size lends to that too.

 

Edited May 21, 2017 by Ronald_55

[Garufa]

21 minutes ago, Ronald_55 said:

I see online that it could have a front sight cover.

Maybe someone pulled one off it. The barrel discoloration size lends to that too.

 

I could get behind that theory.  If you zoom in and look close enough there is a definite band of discoloration.  I still think solder was involved.

[Ronald_55]

1 hour ago, Garufa said:

I could get behind that theory.  If you zoom in and look close enough there is a definite band of discoloration.  I still think solder was involved.

I would agree. Like some of the Mosins it could have been soldered on.

KahrMan is the silver on the barrel raised, or is that cuts into the metal?

 

Edited May 22, 2017 by Ronald_55

[DWARREN123]

Looks like a old band type front sight was removed and the soldier not completely removed.

Edited May 22, 2017 by DWARREN123

[KahrMan]

11 hours ago, Ronald_55 said:

I would agree. Like some of the Mosins it could have been soldered on.

KahrMan is the silver on the barrel raised, or is that cuts into the metal?

 

It is slightly raised.  You can feel it when you rub your finger across it.  

 

TGO to the rescue again.  Mow that I really look at the barrel you can see the band of discoloration.  It makes sense that a band style front sight was removed.

 

Now the next question is how to do I remove the soldier?  Will a heat gun soften it up enough to get it off?

[Ronald_55]

2 minutes ago, KahrMan said:

It is slightly raised.  You can feel it when you rub your finger across it.  

 

TGO to the rescue again.  Mow that I really look at the barrel you can see the band of discoloration.  It makes sense that a band style front sight was removed.

 

Now the next question is how to do I remove the soldier?  Will a heat gun soften it up enough to get it off?

A soldering iron and desoldering bulb might do it, but might take some time. You could control where the heat is better that way though.

[peejman]

19 minutes ago, KahrMan said:

Now the next question is how to do I remove the soldier?  Will a heat gun soften it up enough to get it off?

I'll bet you'll have a hard time getting that solder hot enough with a heat gun. It'll heat a big area and perhaps also weaken the solder that's holding the sight on. 

You might be able to remove it with a soldering iron and wick. Otherwise you could polish it off with some fine sandpaper or they make chemical solder removers. 

[RED333]

Sand the stuff and re-blue, there done. Or just leave it alone, shoot the mess out of the rifle then resale it.