The title states it but I am basically brand new to reloading sticking to manuals and everything. I am having trouble with 223 reloads. Every round I resize does not go to proper measurements. I bought the lee brass headspace gauge and it is sticking over the maximum by a very small amount but still over and I don't want to take any chances. I have tried moving the die up and down as that is the only adjustment I can do. I am using a lee reloader with lee dies. I cut the brass to 1.75 and I chamfer and deburr them. I reloaded 308 and 30-06 both worked flawlessly and shot just fine but 223 won't even chamber. I will say one brass did get stuck in the die and I have to unscrew the top and use the de primer to remove it as it says to do in the instructions. I took the firing pin out of the BCG to test chambering and the bolt locks but won't unlock. Is the die messed up or am I missing something unique to 223? I have tried looking this up online and on other forums but it's all just how to reload and I'm doing the same steps.