I recently purchased a Lee reloading set and I have dies for the 9mm and .45acp. I purchased 125 gr lead round nose 9mm bullets and 225 gr flat nose .45 bullets from a gun show along with some Clays powder. I need a bit of help with the conversion from the powder volume to the amount of grains reloading data would call out. I understand that if Hodgdon's calls out 2.9 grains of Clay's as a starting load that I don't measure out 2.9 grains in my powder scale. I take the conversion factor for the powder and multiply it by the recommened load. Correct?
I've reloaded 100 rounds of 9mm using 125 gr lead round nose bullets and the conversion for weighing out powder is around .5 grains (I'm at work so I don't have the data). Am I doing this right? I'm sort of antsy about shooting these rounds.