Thanks Highstandard, I was hoping somebody would get it. The only thing that actually worried me was whether or not the shot load was actually correct, which is easy enough to check, but I was taken a back by the length when I opened the box.
I really thought they must be 2.5” thrown in a 3” box, but then I saw the stamp. Maybe federal should just label them 2 and 3 quarter inch like a 12ga shell.