I don’t think any state allows a .223 for deer.
You can use them for coyote, hogs and varmints though.
I’m thinking it is the small diameter of the projectile rather than the force behind it that is the problem?
.30 caliber minimum in this state for big game. I tend toward the .45-70. That solves most problems, including unwanted motor vehicles.
In Pennsylvania, the only requirement for deer and black bear in regular firearms season is that it is a centerfire round with a projectile designed to expand (i.e. no FMJ). If so inclined, you could use a .17 Remington for black bear. Muzzle loading long guns must be a minimum of .44 and muzzle loading handguns must be at least .50.
There is limited hunting of the PA elk herd, and IIRC, there is a .270/130gr. minimum for them.
Arkansas does an I think Texas also does allow it.
I understand that the Army decided that a wounded enemy soldier placed more strain on the enemy’s resources than a dead one — hence the smaller caliber. Wounding a deer is frowned upon by the state hunting officials (and by most hunters).
“I dont think any state allows a .223 for deer.”
Oh Please. Don’t give the anti’s any more ammunition. Many (me included) hunt with an AR in 5.56 (.223). If it’s good enough for a Taliban it’s good enough for the deer we have here in ‘Bama. Roll Tide!!!