Originally Posted by Riflecrank
Sir Bulkie,

My CH4D Canntool handled .510-caliber quite easily.
Old Barnes Original 600-gr/.510 were beautified nicely with it.
Maybe I have a new and improved model or mine just doesn't realize it is not supposed to do that ?


Just checked the CH4D website , .17 to 45 caliber .

click on me CH4D cannelure tool