My son and I just started reloading with the Hornady LNL Classic kit and every thing went well except the powder measure. I completely disassembled it and cleaned it as directed but we had trouble getting it to measure consistently. It worked fairly well with the IMR 8208 I was using for my 204 Ruger but was terrible with the RL17 my son was using for his 300WSM. Is there a break in period or any tricks to get it to measure consistently? Thanks.