Primitive Archer
Main Discussion Area => Muzzleloaders => Topic started by: Eric Krewson on February 23, 2021, 06:29:50 pm
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I have a new drop-in .54 TC barrel that needed work because the crown was cutting patches, I tried the thumb and sand paper method but could tell I didn't have the crown cut perfectly on all sides.
Bill Raby used a similar tool in one of his videos to the one I made to crown a barrel so I thought I would expand on his idea and make one to use on my new barrel. I can chuck mine up in drill, his was strictly a hand tool.
I turned the tool on my hobby wood lathe, it has about a 60 degree cutting surface. I turned the small end to be slightly smaller than the bore and put a piece of tape around it to give it a snug but turnable fit to the bore to center the tool.
(https://i.imgur.com/ObuvTao.jpg)
I taped sandpaper on the cutting edge, starting with 220 and finishing with 400
(https://i.imgur.com/lTnw722.jpg)
I tried hand cutting the crown but it went slowly so I chucked the tool up in my drill. While running I shifted the handle of the drill every few seconds to another position to keep the pressure constant. I would go from 12 to 3 to 6 to 9 and back to 12. This tool cut an amazingly even crown.
(https://i.imgur.com/K6DusQN.jpg)
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Nice job Eric :-M ! Bob
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Very clever thinking.
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Nifty idea! If you need it, make it!
Hawkdancer