identifying a barrel

[brady holderread]

I have a rifled,40 cal.barrel with the only mark being a small broken circle and 40 cal. stamped on it. The barrel is threaded for a breech plug and 44 inches long. 1/48 twist. Any ides as to the maker?

 

[ApprenticeBuilder]

how is the circle broken, Green Mountain uses a circle, a picture would go along way to helping here.

hotoSmile:

 

[Bill Hall]

Thinking the same thing, G.M., and I believe their .40 barrels were rifled with 1/48 twist. I wonder if the barrel was previously on a rifle, and the mark ended up where it was exposed. Perhaps someone tried to sand it off and left some of the circle.

If it's a G.M., the rifling should be square bottom, and the grooves will be about 1-1/2 times wider than the lands. 8 grooves, I'm pretty sure. That rifling won't prove that it's a G.M., but if it has some other kind of rifling, it will proove that it's not. Make sense? Bill

 

[Bill Hall]

Oops, I don't think G.M. made a 44" barrel. I believe 42" was their limit. I wonder if the open circle is a "C", as in Colerain. I've used Colerains a bunch, but can't remember what their logo looked like. Sometimes their barrels are so rough I end up filing every flat, even the hidden ones, so no logo.

Can anyone else answer this? Bill

 

[ApprenticeBuilder]

Colerain typicaly has an address stamp but no "brand" as many of the other makers do.

 

[Birddog6]

Yes, they make a 44" barrel length. I have 4 Green Mountain 13/16" x 44" .40 cal barrels. Bought them at Friendship about 4 years ago.

Keith Lisle

 

[brady holderread]

oops, it is a 42 inches. My typo error. It is a green mountain barrel. Thanks to all you knowledgeable guys.

 

[Bill Hall]

So we were both right, kinda. :rotf: Bill