r/canadaguns • u/IGnuGnat • May 03 '26

Fix my gun Something different: Making barrel rifling using water (and copper and 3D printed jig and electro etching)

https://www.youtube.com/watch?v=bypXVjkbvIo
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u/NemrahG May 03 '26

That’s actually really cool! Curious what the accuracy and how durable the rifling will be long term

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u/IGnuGnat May 03 '26

I'm interested to know also about the accuracy especially. I always thought that the rifling was super important but I've seen people talking about this with black powder and old antiques and some of them maintain that a little bit of pitting is okay as long as it's not in the last few inches of rifling. Maybe with black powder they tend to shoot shorter distances

I've seen people rig up contraptions to use a car jack to push a bit through the barrel that cuts the rifling, and I thought this looked like an interesting alternative if you have a 3D printer or know someone who has one.

I have an old antique with some heavy pitting so i've been thinking about making a new barrel for it. I guess it would be easier to buy a barrel and modify it, maybe but options are always nice and rifling has always seemed like the hardest part to make in a small home workshop. I think this makes it more accessible, you can always hire someone to print the 3D part

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u/Vintage_Pieces_10 May 03 '26

I was advised when I was trying to make a new barrel and asked the gunsmith for tips, that it may no longer be legal to create barrels without a manufacturing license. The wordage in the law surrounding ghost guns and parts changed and the barrel is potentially now a prohibited part to make.

I would encourage you to look at the laws and take my word for a grain of salt, but they did say it may no longer be legal

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u/IGnuGnat May 03 '26

Now, see I feel compelled to ask:

WOuld it be legal to fabricate a replacement barrel for an antique, or do I go straight to jail?