The other day as I was coming home from a walk along the river a young friend drove by and offered me a ride to my house. I climbed in, noticed that my friend had a rifle (he said he was going elk hunting in the coming week) and I asked him the caliber. “7 mm,” he said, which I converted to a .280. My elk rifle was a .270, and so .280 seemed about right to hunt elk. He talked about where he...