Smoothy barrels from tubing

[GreyWhiskers]

Have read here about some smoothbore barrels being made from tubing. I've been looking into buying a fowler kit and saw where their octagon-to-round barrels are made from tubing. How do they get the octagon part attached? Are they acceptable? GW

 

[mazo kid]

I'm not an expert, but I would think the tubing is purchased with the outside diameter large enough to be milled into octagon shape and the rest turned to a smaller diameter out to the muzzle.Hopefully someone more knowledgeable will jump in here. Emery

 

[Bubba45]

Thats how its done Mazo. Starts out huge then they turn a portion on a lathe and mill the rest octagon.

 

[bingo1952]

That's about the only way you could do it and make any money doing it. I guess you could conceivably take a piece of octagon stock and drill it and put in a piece of round tubing the same as you would a barrel liner. That sounds like the hard way to me though. :wink:

 

[Many Klatch]

I had a custom smoothbore barrel made by Getz once. I had the bore bored to 20 gauge, but the outside of the barrel was lathed out to 16 ga size. That gave me a really thick smoothbore barrel that shoots like a rifle. The barrel was 48 inches long and was shaped octagon to wedding ring to round. I was just shooting it this last weekend. I think that shows that the barrels are turned out of one piece of steel.

Many Klatch

 

[tg]

Some if not all of these have the oct part straight then the taper is in the rd section OK for a smoothrifle with a rear sight but I don't think they come to eye well when sighting down or over the barrel.

 

[GreyWhiskers]

Thanks for the info guys. :thumbsup: GW

 

[rkmeyer]

Colrain is bored and machined on the outside. The oct section is tapered to the wedding band and the round section is swamped. They also fit and include the breech plug and index marked.

They are very nice barrels.

 

[paulvallandigham]

Dusty Bob: Did you just mispell " Colerain" or is this some new barrel maker I have not heard of before? Thanks. :thumbsup:

 

[Capt. Jas.]

http://www.urbandictionary.com/define.php?term=mispell :grin:

 

[Blizzard of '93]

I've got an idea that heavy equipment hydraulic tubeing would do for a barrel - if you could ensure the straightness of. I know for sure that aircraft tubing would - it's stainless steel tho and would not take browning/blueing (I think)

 

[Tinker2]

For Rebluing Stainless Steels
http://www.brownells.com/aspx/NS/s...XYNATE~ NO. 84 - HOT CHEMICAL BLUING COMPOUND



Tinker2

 

[Bountyhunter]

This has the sound of a lot of my projects. Spending $500 to prove something when I could have gotten a plumb good commercial model delivered to my door for $195.

 

[oldarmy]

The tube is round/hollow and the flats are milled.
Thousands of guns have been built using this tube with no problems.
It's safe and makes a good barrel..
Please remember it's not...A PIECE OF PIPE...
I CAN'T believe there is a self-respecting, reputable gunbuilder that would use an un-safe "pipe".

 

[Capt. Jas.]

The tube is round/hollow and the flats are milled.

Has anyone ever seen one with a profile like an original 18th century octagon to round gun barrel though?

 

[tg]

There has been a concern with the type/quality of stuff used in the import guns, it may take repeated pressure spikes to finaly pop some types as they are made for constant or slow rising pressures, been a lot of back and forth on these lately, I had one and it was USA made and I was ok with it but I think in the future when you can get a good barrel with the right profile from solid stock for $200 give or take I think it may be the better choice.

 

[paulvallandigham]

Capt. I purposely left that there to see if anyone would catch it. You are the winner. :grin: :hatsoff:

 

[Mike Brooks]

The tube is round/hollow and the flats are milled.

Has anyone ever seen one with a profile like an original 18th century octagon to round gun barrel though?

I have had Ben Coogle make several 5' and 6' barrels for me that have the proper profile. all 11 bores and one 20.
Many guys that are turning this stock down don't have a clue what an actual 18th century barrel looks like.

 

[AeroncaTAL]

I've got an idea that heavy equipment hydraulic tubeing would do for a barrel - if you could ensure the straightness of. I know for sure that aircraft tubing would - it's stainless steel tho and would not take browning/blueing (I think)

Most aircraft steel tubing is 4130 seamless and can be obtained in a number of outside diameters and wall thicknesses. Both welded stainless and seamless stainless tubing is available, but not with the variety of the 4130 tubing.
Scott