First of all, you won't offend me if you tell me i'm an idiot and am doing something wrong. I want to learn. I finally got everything I need to reload and started my first rounds this weekend. I'm using a RCBS 10-10 beam scale and am running into some problems. I zeroed the scale and loaded 25 rounds. These are my test/work-up loads so I measured everyone of them. Today I started loading the next small batch with another powder and decided to make sure my zero was still good. When I re-zeroed it, it was off by around 0.7 grains. So, after each batch of 5 rounds I rechecked the zero and found that it changes on me. I checked and double checked to make sure everything was in order and i'm not sure what is going on. Any ideas would be appreciated.