A lot of folks don't reload RP pistol brass, at least in some calibers. It is known for thin mouths/walls and insufficient bullet hold. Some of the others too, someone with more experience with them will have to chime in.
Still happily answering to the call-sign Peetza.
You do not HAVE a soul. You ARE a soul. You HAVE a body.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.