I just bought a Hornady powder measure and having an iss with it throwing a consistant charge. I am using Universal powder trying to throw a 3.2 grain charge and I am getting from 3.0 to 3.2. I clead the measure out 2 times with Hornady One Shot and I am using a micro charge adjustment control. I have an electronic scale and a RCBS 502. Is 2/10 gr anything to worry about, this normal?