Only that Shotguns come in gages not calibers. Cheney was using a 28 Gage Shotgun which is a pretty small bore shotgun. Lucky for the lawyer Cheney wasn't shooting 12 Gage Magnums.
"Cheney was using a 28 Gage Shotgun which is a pretty small bore shotgun."
His friend is lucky.
Not to nit-pik but the .410 is a caliber.