Ripmyfly, I'm in the same process too with my 9 yoa. He's hunted the last two years with a .410 mossy 500, but of course no accuracy. Now that he is big enough for a little recoil, I've been working a load on my LK-93 and a thick slip on recoil pad. I tried the loads first myself. My normal bullet is a 300 grain. .45 XTP and tried it with 50 of RS, it had way too much kick. Tried some 200 grain .44 lead solids with 40 and 50 of RS and a 50gr pellet of 777. The 777 had the least amount of kick and went with 777 pellet. So I put 4/5 shots under 1.5 inches at 25 and my boy had 2 bullseyes at 50 yards. with a 4x32 scope. However his hunting load will be a Hornady .50, 180 grain .44XTP and one 50gr pellet. The lighter the bullet the better, should have enough power under 75 yards which is all these boys need. good luck