Loading for (precision) rifle is all about detail and working up loads for each rifle and barrel. Shotshell loading is all about production of a set recipe. However, you do need quality components and there is still a lot of attention to detail, especially with a progressive. I started loading for rifles 62 years ago and loading shotshells 55 years ago; I have loaded many thousands of both. Shotshell isn't quite as economical as it used to be, but the pride in producing your own is still there. And I'll ditto what Greg said. It's all pretty straight forward until you get to 410, then your recipe has to be very exact for the particular hull you are loading to get really good results and you have to be on guard for potential shot bridging problems in the drop tube. It can be a real PIA.