All TSS shells are not created equal. I bought a new turkey gun this year, and since I like to overdo everything, I spent a fortune on different TSS loads and chokes. This was my first time in-depth patterning a dedicated turkey gun, so it was a fun adventure for me. The first thing I'll say is....I wasn't impressed with Federal TSS loads. I was impressed with the LBXR's, especially the #6 shot, which I had never shot before. If I had to choose between the 2, I would take LB 6's all day over Federal TSS. The real difference came with the premium/custom shells (Apex, Boss, Foxtrot). The numbers you get on paper with those is far superior to anything else. I'm shooting a Cynergy, which is also an Invector Plus gun, and I've got the best patterns with a .665 and .675. Hope this helps, best of luck!