The worst part is the affect of age. When I was younger I didn’t have those little wrinkles at the corner of my eye. They act as a trough for sweat guiding that it right into my eyes. It is just as bad with a weed eater which a tool of satan.
I've seen 311316 moulds offered at .315 from some of the custom makers these days. My Lyman drops them at a trifle over .314, perfect for most things. But I have a new 32 S+W Long rifle barrel that might need a fatter copy...