ok, question is, i have .45acp, 190 gr. swc. i use winchester 231 powder. i have been reloading using 5.5 gr. powder. i can't seem to find the exact upper and lower on the grains to use. this is an older cast that i bought years ago and i stopped reloading some time ago but now trying to get back into it. is the 5.5 gr powder about right? any ideas helpful. thanks. i have dillon 550 reloader with lee powder safety scales.