I'm a fan of Hevi-shot. I first shot it as Rem. Hevi-shot 3" no.4. It was great stuff. I tried some Wingmaster HD 3" #6. bang-flop-dead. When I ran some Hevi-shot mag blend through my gun (Win 1300), not so great.
Currently, I'm using 3" Win Supreme #5. (copper coated lead) through a Comp-N-Choke XX-Full tube. That is a mean combination on my bird buster. Next year I wanna try the Longbeard XR.