http://www.chuckhawks.com/shotgun_recoil_table.htm
Check out this website, actually read the whole thing. Especially the link above. Look at the recoil tables. As for the joke it was a dig on people in southern Iowa and Missouri being somewhat slow. Too bad I had to explain the joke to you. Proves my point. I am from North Iowa, graduated a Panther, love the Hawks and currently living in Seattle.