I would look at the Federal Heavyweight #7 over the TSS. More pellets and hit like #4s. If your gun likes the Flight Control Wad,
www.rogerssportinggoods.com has them for around $15.00/box of 5 if remember right. Try a box and if they shoot well then order as many as you can as they have been discontinued. Not many guns like the Flight Control Wad, but if yours does, those shells are monsters. No need for TSS with a good pattern of those in any gun.