With the HW 7's, my gun didn't like the ssx at all. It does really well with the Trulock choke and shoots the Carlsons great too, but it likes to be ultra-clean between shots.
I believe when my little girl starts hunting with it next year, i'm going with the Remington super full and the 2.75" Federal 7's and be done with it, the others will be too tight for a youth with little experience.