What to do

There is DOM seamless finished tubing and DOM seamless tubing.
The former has a seam and the drawing process irons out the tube inside and out so it is "seamless" in appearance. That is, no visible seam.
The latter is made by piercing a round steel billet and then drawing it out. The finished tube is also DOM and never had a seam.
 
So not to be a drag on this but note the changes made to the firearms act in recent years.

1) Any firearm with a bore over 20mm (.787”) is prohibited. This would meet that criteria.
2) Any firearm manufactured without a manufacturers license is automatically prohibited no matter where it would fall otherwise.
3) As of 2023 you now need a firearms manufacturer license to manufacture a firearm.

Would hate to see someone get nailed for such stupid laws.
 
Eaglelord17 said:
So not to be a drag on this but note the changes made to the firearms act in recent years.

1) Any firearm with a bore over 20mm (.787”) is prohibited. This would meet that criteria.
2) Any firearm manufactured without a manufacturers license is automatically prohibited no matter where it would fall otherwise.
3) As of 2023 you now need a firearms manufacturer license to manufacture a firearm.

Would hate to see someone get nailed for such stupid laws.
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It’s going to be a cannon so totally legal as long as it’s not cartridge or has a modern firing source.
 
Eaglelord17 said:
So not to be a drag on this but note the changes made to the firearms act in recent years.

1) Any firearm with a bore over 20mm (.787”) is prohibited. This would meet that criteria.
2) Any firearm manufactured without a manufacturers license is automatically prohibited no matter where it would fall otherwise.
3) As of 2023 you now need a firearms manufacturer license to manufacture a firearm.

Would hate to see someone get nailed for such stupid laws.
Click to expand...
A fuse fired cannon is legally an antique so none of that applies.

I could coast a 12 pound Napoleon and still be within the law. As for what I make in my own time who’s it say when it was made could be before the 2023 law.
 
antiqueguy said:
A fuse fired cannon is legally an antique so none of that applies.

I could coast a 12 pound Napoleon and still be within the law. As for what I make in my own time who’s it say when it was made could be before the 2023 law.
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Could be after 2023 too. Especially if posting a thread on doing so on CGN in 2025/2026.

I just don’t want to see any good people jailed for stupid laws. And if your doing something which is questionable under our current laws, it is easier to not create evidence of the potential offence/post it online.
 
fingers284 said:
t6haank you for the info. I'm curious, if that is "pipe" as you suggest would it not have the weld seam obvious to be seen...if it has no weld seam it should still be described as DOM would it not?
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Line pipe can be seamless, welded or continuous welded. If drawn over a mandrel then I guess it would be considered DOM, but what distinguishes pipe from tubing is how it is sized and denoted. Tubing is typically sized by OD and wall thickness, pipe is sized by the ID and wall thickness because they were concerned with the internal flow area.

The pipe in OP is labelled as 1-1/4" and 1.660" OD x 0.896" ID. If you look up a piping size chart you will see that all 1-1/4" pipe has an OD of 1.660" and that the ID (and wall thickness) in OP correspond to XXH weight for that size.


Mark
 
I think it is pretty much common knowledge that many muzzleloading enthusiasts make - scratch build - muzzleloading guns.
Touch hole fired post 1897 long guns, i.e. match lock, wheel lock, flint lock have long been deemed antique. Post 1897 percussion long guns are non-restricted. All post -1897 handguns are restricted or prohibited.
 
Eaglelord17 said:
Could be after 2023 too. Especially if posting a thread on doing so on CGN in 2025/2026.

I just don’t want to see any good people jailed for stupid laws. And if your doing something which is questionable under our current laws, it is easier to not create evidence of the potential offence/post it online.
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Well aintiques is antiques and they don’t have the same rules as modern firearms.
 
With respect to making barrels... Over the years I have had experience with two muzzleloading mortars, tomato paste can bore size. Both made from solid steel stock, drilled and bored. Both used a reduced diameter powder chamber. Black powder charges similar to what a 12ga shotgun would use. Under 100gr of Fg. Loft time about 8 seconds, range about 200y. No concerns about barrel integrity. No concerns about backstops.
There are mixed opinions about the use of tubing for muzzleloading barrels. Drawn tube tends to be ductile. That is a good thing in a barrel. Deformation is better than fracture, in the event of a failure. If tube has a welded seam, the weld had better be full thickness and without flaws. There are testing methods which should detect seams or cracks.
 
yes I would love to build a breach loader that would use some sort of brass cases but that is now prohibited. Basically copy the design of the C3 Howitzer, or British 25 pounder, only scaled way down, a working miniature replica. (Hmmm is a replica field gun really a firearm :) ) Need a big block of steel to build the breach. Brass barstock to machine cases......

but I am resigned to making a muzzleloading cannon using cannon fuse / touch hole ignition. Sad really the state of things.


https://apps.dtic.mil/sti/tr/pdf/ADA079666.pdf
 
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There was a member (now deceased) who made a little ml howitzer, complete with recoiling barrel. Rubber tired wheels. I remember meeting him and seeing it at an Edmonton collectors' show.
 
woodchopper said:
but I am resigned to making a muzzleloading cannon using cannon fuse / touch hole ignition.
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Reading between the lines, I'm thinking you are likely aware there is a group of us "local" to you still shooting cannons regularly. Anyway, though perhaps your barrel is small to be competing, it certainly could be a lot of fun. If you are not connected to any members, feel free to PM.....plenty of technical "data" (read "experience") available....
 
tiriaq said:
With respect to making barrels... Over the years I have had experience with two muzzleloading mortars, tomato paste can bore size. Both made from solid steel stock, drilled and bored. Both used a reduced diameter powder chamber. Black powder charges similar to what a 12ga shotgun would use. Under 100gr of Fg. Loft time about 8 seconds, range about 200y. No concerns about barrel integrity. No concerns about backstops.
There are mixed opinions about the use of tubing for muzzleloading barrels. Drawn tube tends to be ductile. That is a good thing in a barrel. Deformation is better than fracture, in the event of a failure. If tube has a welded seam, the weld had better be full thickness and without flaws. There are testing methods which should detect seams or cracks.
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Back when I was cobbling together flintlocks, I used Getz barrels. They wre made from 12L14 steel, tje “L” denoting “leaded”. Easy to file, machine and engrave. There was and likely still are perpetual arguments on the utility of 12L14 as a gun barrel steel as it was NOT intended for that use. However, Don said he tested it extensively to get it to fail and never did. He even took a length of 6-8”, filled with powder, breeched both ends with a touch hole and lit it off. No deformation. All that pressure came out tje touch hole. I’ve seen mortars made from a driveshaft which are paper thin shooting oranges. Rice also uses (used?) 12L14 for their barrels.
 
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12L14 machines beautifully. It tends be less ductile, more brittle. It has been widely used for rimfire and muzzleloading barrels. Orion Rifles Barrels made thousands of ml barrels from, maintained there was never a failure. When we were making repro NW guns, we used 1137.
 
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