RE: Rifle combo's
Those Rossi's are fine for a young kid just starting out and learning gun safety and all of that. However they aren't much more than that. They are pretty cheap.
I bought one (.22lr & 410 barrels) for my son when he was 8 to learn with and he gave it to his sister to learn with. It pretty much just sits there now since they are older.
I will tell you that a 3" heavy game load in the 410 will slap a kid pretty good.