While bear hunting yesterday my buddy and I stopped at a couple gravel pits in search of brass. While picking up some .40 I noticed one of them looked funny. It was a 9mm necked out to a .40. Just a reminder to be mindful and shoot one caliber at a time. Also had a friend who put a .270 shell in a 7 mag. Both black Remington 700's, easy to do. That's why I only shoot 30-06.