Quote Originally Posted by Whynot View Post
If you are putting a role crimp on then it is important to be the exact same- but not many people seem to be using a role crimp anymore.
I do on straight-walled pistol cartridges and .303 British/7.62x54R. Which are, by coincedence, the only bullets that I use that have cannelures. The latter being a collet crimp - not a roll crimp.