One of the guys I work and hunt with has a little Rossi .223 that he bought for his daughter to hunt with. He actually used it last year and shot two deer with it at about 100 yards. Lung/Heart shots. Both deer only ran a few yards before falling. He also shot a pig a couple of weeks ago, pig about 80 pounds, and shot was only about 30 yards. Pig fell there on the spot. No pass through though.
Me, I shot 3 deer with 22-250 last year with 50 Nosler BT. All three were abou 110 yards and all ran only about 20 yards before falling. Moving up this year to a 25 bullet.