Anyone try one of those Manson reamers to re-crown a barrel?

[WeR0206]

Curious if they are any good....

 

[Maurygold]

Having not watched the video. I’m unsure why anyone would try this unless they’re suggesting it may help a factory barrel

 

[WeR0206]

Having not watched the video. I’m unsure why anyone would try this unless they’re suggesting it may help a factory barrel

That’s what I was thinking as well either that or if you’re trying to fix a botched job by a gunsmith or something

 

[cas6969]

I've used something similar that the used to sell. Cleaned up some buggered and shorted surplus rifle barrels with it.
Better than hand files.