This might be in the wrong category...if so I'm sorry i just wanted the right eyes on it. Ive read up on reloading and have helped my dad with some. We currently reload for our pistols and our .270 WIN. When you set up the dies for the .270 it said to adjust out until the bullet touches the riflings. Today i was reading an article on the difference between .223 and 5.56 and they talked about the space at the breech end of the barrel that isn't rifled. The way they made it sound is that the bullet isn't already in the rifling when it's fired. Is that true our did i somehow misinterpret?