Hunting deer with a .22 Hornet?
Better than a .22 Short I suppose.
.22 Hornet has 100 yds less energy than a .223
My mother had a .22 hornet.
Over 2700 FPS (feet per second).
She didn't use it much as the ammo was more expensive than .22 long.
She killed a deer with a Mossberg model 152 .22 long rifle at around 1000 FPS.
It dropped dead instantly. Shot through both eyes, toward the rear of the eyes, from the left side.
From close range to 100 yards, it's the hunter, not so much the ammo.
Another friend killed a 300+ pound black bear with a .22 long rifle.
Shot through the right eye at point blank range, about a foot or less as it charged him.
It also died instantly, the body brushing by him, landing in a heap.