I'm going to start this out by saying I love my RCBS Chargemaster. Having used a Pacific scale for close to 40 years without any problems or a single hiccup though I will say that the Chargemaster has already let me down and I do not know what happened. Here is how it came about. I had 100 rounds of .308 to reload and was using Varget powder. When I finished I went to change the powder in the Chargemaster and I have already found this to be a big PITA as static electricity causes grains of powder to stick to everything. Sides of the powder tube, sides of the area around the dispensing tube inside of the Chargemaster and anywhere else it can stick. Taping the sides of the powder tube knocks some of it down but not all. While doing this some of the powder left in the dispensing tube dropped out and bounced out of the pan and onto the area around the part under the pan. Well I continue to try to get the rest of the powder out so I can switch to Retumbo and load up some 7MM Rem Mag loads. I finally get it all out and see there are some kernels of powder under and around the part that holds the pan. I tip it to try to get them out and I get most of them but some roll under that piece. So I carefully lift that part off and I can see a couple kernels have dropped down inside and I can see them stuck to the inside parts. So I carefully turn it over and tap it to get them out and when I turn it back upright I cannot see them anymore. So I put that part back in and start through the re-zero process. Dang I cannot get it to re-zero. It goes through the process but when I put the pan back on and the pan weight goes up and gives the pan weight I refuses to weigh it. I went back to the book and follow the directions 4 times in a row and nothing. I shut it down and left it off for an hour and still nothing. So I'm thinking that possibly I screw something up by taking the part that holds the pan out and possibly getting some powder down in there. I'm a bit miffed about this time as I'm really wanting to go break in the new 7MM Rem Mag Sendero to see what it can do and I am going to have to do it on the Pacific scale which I'm finding it slower than I can take since I have bought the Chargemaster. So I put the Chargemaster back in the box figuring I'm going to have to send it back in and get it fixed. I figure that I should call RCBS before doing that as maybe they can help figure out what is wrong and can help get it going again or tell me what is needed to send it back in. I'm not going to be off again for a few days so I just put it away till I can call. Well today I get it out and put it all together and plug it in figuring I will get it started so when I call RCBS for help its at least running. I put it together and plug it in and hit the on switch. It starts up just like it is supposed to do and does the count down. I thought what the heck and went through the start up procedures and go the whole route to put in a load just to familiarize myself again with the problem. Everything goes as its supposed to, it reads the weights and low and behold when I put the pan back on to zero it weights the pan. I hit the zero and it zero's. So I punch in the load I want and hit dispense and away it goes. So here is the question, "What the heck happened??" Why wouldn't it do this last week when I needed it to and what changed when I put it back in the box and put it away. Does unplugging it do something to reset it or did the piece of powder I seen under the part that holds the pan fall out or what. Anyone else had this experience. The only other thing I can think of is maybe there wasn't a good connection between the scale and the dispenser. So now I am trying to figure out what went wrong and what I did to solve the problem and if there is or isn't a problem. For now I am just going to go ahead and use it and see what happens.