I once killed a bird and only found one pellet that hit the head. Dressed it out, and figured I'd find a bunch in the body, but there were none. I always thought I must have hit just right. I have used a number of different shells, in 4, 5, and 6 shot. I used 12 guage in 3 1/2, 3, and 2 3/4 inch, as well as 20 guage 3 inch. In the 12's I always liked Winchester Supremes in all of them, with number 5 shot being my favorite. I mostly shot a 20 now, and have been shooting Federal 5's, mostly because I have a bunch of them. I prefer heavier shot because it penetrates better, and I think 4 or 5 of them will take down most turkeys.