there will be only a handfull of people that may be interested in these but if you need them you need them.
this adaptor threads into the ram on the rcbs big max (maybe others too) and then you can thread a corbin push rod into it, basicly this makes a big max able to swag with some corbin dies, and btsniper dies.
if you want more info pm me and we can see if they will work for your situation.