So many gun experts here why have none of them actually studied the lethality of the 22 long rifle, there are plenty of YouTube videos that will help you out.
By the way the 22 long rifle is the weapon of choice for deer poachers, even tho most states demand at least a 30/30 not even the M1 Carbine qualifies even tho there were many enemies killed by that weapon. When I went through basic training I think we had to at least fire every infantry weapon in service. I was even demanded to fire a rifle grenade, from the shoulder standing, that will make a man of you.
I have an old rangefinder on one of mine. One day, I shot a coot at 200 yards. I must have aimed two feet over.