Well my grandson isn't much more than a popcorn fart. He is shooting reduced loads from our Ruger Compact in .308. The loads are straight off the Hodgdon website using 125gr Nosler BT's. I am getting just over 2300fps form the 16.5" barrel, and as much as I hate it, they group better than just about anything I have loaded for this rifle.
Getting ready for the shot,

50 yd group

185 yd steel

So far he as taken one feral hog and killed a LOT of paper. Fully loaded the rifle only weighs 6.5 pounds. The recoil isn't so much that it bothers him, nearly as much as the noise from the short barrel does. We use both ear plugs and muffs on most occaisions, and when we hunt I put the electronic muffs on his so he can hear me when I am whispering.
So far he is pretty decent out to 200yds with these loads on paper. We haven't made the jump to game at this range yet, but with the hog population on the rise again, it won't be much longer till her squares off on another one.
First hog @ 50yds
I would give that load a try before doing any mods on the rifle. You might be really suprised at how tame they are. Just make your shooting seccions short with only a few rounds at first. Be forewarned though, once they get past the "big gun" thing, your gonna need more bullets. [img]/ubbthreads/images/graemlins/grin.gif[/img]