button rifling?

[chuck-ia]

was discussing button rifling today with a friend. he thought a tapered cutter was used and pulled through the barrel to rifle. I allways thought a hardened button was pulled through the barrel, not really cutting, but dissplacing the metal, (so to speak). anybody know for sure? flinch

 

[David/toledo]

Harden as I have heard it
David/Toledo

 

[CoyoteJoe]

Button rifling is as you said, what I think your friend is describing is broach rifling where a series of cutters, each a bit larger than the one before is pulled through the bore. Smith & Wesson revolvers used broach rifling at one time. Both methods are faster than cutting a single groove at a time, as most U.S. muzzle loading barrels are made, and button and broach generally produce smoother surfaces as well, but don't lend themselves to the deep grooves we like for patched round ball shooting.
whew, how was that for a sentence? :redface:

 

[roundball]

was discussing button rifling today with a friend. he thought a tapered cutter was used and pulled through the barrel to rifle. I allways thought a hardened button was pulled through the barrel, not really cutting, but dissplacing the metal, (so to speak). anybody know for sure? flinch

Button rifling is forced pressure grooves, not cut grooves...scroll halfway down this page:
[url] http://www.firearmsid.com/A_bulletIDrifling.htm[/url]

 

[chuck-ia]

thanks all for the info. flinch