It is hard to believe that you have reloaded for years and own neither a scale nor a powder dispenser. Before doing any more reloading, drop what you are doing and go get one of each.
Not even gonna answer your question. Not being rude, just trying to set you up for success through knowing what you are actually putting into your rounds. The dipper volumes presented in the Lee manual mean DIDDLY to actual charge weights, in my experience. They weight out both higher and lower than indicated.