That MR ammo is the berries for kids. Lets their folks buy them a rifle they can use a long long time and hunt lots of different game with.

As for reloading... you typically won't get ammo much hotter than factory loads... if you want a hot load.... check out Hornady Light Mag ammo.... thats about the tops in performance... but no matter what.... your gun has gotta shoot it well.... and it seems to be about a 50/50 in my experience.