I am shooting a bolt action Bergara B14 HMR chambered in 6.5 Creedmoor. I was under the impression that after I fired a cartridge from my weapons platform, that spent piece of brass would NOT fit back into my chamber. Well, it does. I am working with twice fired Lapua Brass. I have been reloading now for a little over a year and have just recently gone down another rabbits hole when it comes to Properly resizing my brass for precision shooting. I am only bumping my shoulders back .002, or attempting to. But, that's another thread. My question is why does my spent piece of brass, fired from my rifle, still chamber before I resize it?