Winchester White Box ammo is a golden oldie. It’s a Wal-Mart discount staple that (back in the good old days) you could always pick up for cheap. But is it any good outside of the range? And, especially now that the market has changed and more and more people are carrying small, short-barreled pocket pistols, is the venerable WWB effective from a 3″-barrel 9mm pistol? The answers may surprise you. They sure surprised us.