I have been involved in a thread on another forum talking about crimping and after some prodding thought It might be nice idea to make a video on different style crimping.
Taper Crimp
Roll Crimp
LEE FCD
then Reddings excellent, Profile Crimp which is really just an improved or modified Roll Crimp. Its what I now prefer.
https://youtu.be/j-T70WAkWxU
CW