I'm currently doing some research and ordering a book or two to take a crack at reloading. In this research I have not found a single manufacturer of 5.56 NATO dies. I realize that there are slight dimensional variations between 5.56 and .223. So my question is can you reload 5.56 with .223 dies? If so what are the precautions? Does it lessen the life of the brass with changing dimensions with the .223 resizing die due stress and fatigue on the 5.56 dimensions? Or would it simply just be more beneficial to start buying .223 instead of 5.56 and reloading the .223? With a 5.56 chamber do you lose any accuracy when firing .223 due to dimension variations? I appreciate all feedback and I'm sure I will look to you all more as I get into reloading. Thanks!