I have a dillon 550 that I want to use for my 223. I will be loading it up in bulk thus I need a powder that can meter consistently. I would imagine it would be a ball powder. I will be loading for 55 gr spitzers, also, a sierra 53 gr. HP and hornady 75 gr BTHP. They will be used for varmit hunting. Please let me know what you think and would advise. Thanks,
Bob