most likely heavier loads for rough shooting here in America- and the old "One gun man" theory-- as opposed to incoming head shots on driven game and lighter loads. Once, by mistake, a few seasons ago, I had a 12 AA Trap load ( 1&1/8 ounce 7&1/2 1250 fps. in the chamber of a Model 12 I was using for waterfowl-on the river nearby- two sizeable Canada geese game in silently, on a foggy and overcast morning in early Nov. and I shot by instinct (incomers are my favorite shot- bum, belly, beak, bang-) and the lead honker dropped like he was pole-axed- 12 yard shot, by my estimate, and a full choked Model 12-- But that was a fluke, and I have triple checked my waterfowl hunting parkas and coats for "illegal" lead loads ever since.

"The field is the touchstone of the man"..