The RCBS Group A Full-Length Die Set-Group for Popular Rifle Cartridges is a two-die set intended for reloading bottleneck cases, and consists of a Full-Length Sizer Die with an Expander-Decapping Unit, and a Seater Die with Bullet Seater Plug. The Full-Length Size Die brings the case to SAAMI minimum cartridge dimensions.
I agree about the RCBS instructions. They are for how to set up for full length sizing and thats it. I have and use RCBS dies, but I did not keep a single instruction set. When I started out I had an issue with what ultimately proved to be a problem with an oversized chamber.