Banjo, I bought a couple left handed rifles and found that I couldn't adapt. I've been shooting on the wrong side so long that the bolt being where it should be just felt weird. For the most part I shot Contenders and then Encores.
Semi-auto 22s gave me the most trouble. Mostly unburned powder...
right handed, left eye dominant as well. There is no reason to do anything other than teach him to shoot. I shoot pistols right handed and left eyed, no big deal. I shoot rifles left handed.
The important thing is get him ambidextrous stocks for his rifles. If you get left-hand sets they pretty...
It isn't who shoots first, it's who shoots accurately first
Train weak hand every bit as much as you do strong hand
Things get in your eyes, learn to shoot with either
Just be outside AR in hand, mobs don't go where they believe they'll be shot. They go where the think they can get away with it.
Shoot the ones with the molotovs first, hitting the molotov will make a bigger impression.
This is not the time for pistols