Have a new .308 barrel and bought several boxes of factory ammo to shoot through and then reload the brass. Some factory ammo was a little tight on close, but ejected ok, with no stiff bolt. But now, the same fired brass will not go back into chamber and hangs up at the web. It's going back to the gunsmith to be opened up a bit, but I'm curious... How can brass be fired in a chamber and eject smoothly, but then not be able to go back into the same chamber? It's like the brass statically stretched, after ejection. I understand this can happen with hot ammo and case stretch, but you feel that with a stiff bolt upon ejection. This stuff ejected pretty smooth. It's like it grew AFTER ejection. Help me wrap my mind around this.
