Bought forming dies from redding for 221 fireball, make cases out of 223 brass, after i make a batch of cases for fireball just run them through redding f.l. vartarg die, takes a lot of steps but makes excellent tight necked brass, good Winter project.
been there
done that...........
have a form die too.....
when Lapua builds FB brass.......why form 223.......
wayyyy to much work