Often electronic scales can be thrown of or give error from being to close to the wall where electricity is running by it. Not saying this is the case but it happens often. My guess is that its somthing simple your over looking. Id call RCBS before sending it back they might beable to trouble shoot it over the phone.
Have you even looked in the instruction booklet to see what that error code stands for and what to do when it comes up? According to the one instruction book I brought up online it says that it stands for out of calibration and you need to exactly follow the instructions for recalibrating it. I can't remember the model it was for, but I think that is probably what yours needs to have done. If you don't have the instructions, you can just do a search for that scale and download the thing onto your computer and go from there. Let us know what you come up with and if that fails I guess you can always call the company if you haven't already..
A perk of majoring in wildlife biology in college is the plethora of hunting knowledge that you collect throughout your course load. One of the most important factors in whether an area can hold large quantities of animals or produce large antlers is forage.
Most universities, state schools and even community colleges offer basic botany courses and plant ID courses. Although it might not be feasable for the average middle age hunter to pay tuition and go back to college to learn hunting...