Has anyone on the forum formed 218 Bee brass from 32-20 brass? If so how successful was your attempt? I have had success going from 25-20 WCF to 218 Bee but need some 218 Bee brass and don't want to use my limited supply of 25-20 WCF cases. I have had great success in necking 357 Maximum down to 22 caliber to make my wildcat version of the 222 Remington rimmed. But the 32-20 cases seem to be much more susceptible to case collapse. I appreciate any information.

I think I'd buy a 25-20 sizing die and see how that does from 32.

I first went with a 25/20WCF full length size die, then finished with a 218B FL die. Definitely anneal first. Slowly work the brass into the FL dies, go a short distance, then back the case out, and a bit more each time, eliminates crushed brass.
Bob