I have a couple of 224V ARs, a 223R bolt-action, and a 300 BLK AR15. Some comments:
- The 224V and the 223R have about the same amount of energy. The brass volumes are very close.
- The main thing the 224V has over a 223 is that it can shoot heavy 80gr+ bullets and still load at magazine length for an AR15. This is essentially its whole reason for existence, that is shooting high BC supersonic bullets from an AR15 platform.
- A 223 can shoot heavy bullets as well (with the right twist rate) but not at magazine length, and it usually requires single bullet loading and a long freebore barrel. I never shoot anything heavier than 60gr out of my 223, and I have hand loaded 95gr SMKs for the 224V with good results. As of right now the 95 SMK is the heaviest, highest BC .22 bullet I am aware of.
- So for hunting white tails either a 223R or a 224V will work. If you already have one, no need to get the other unless you just want both.
- As mentioned the 300 BLK with the Barnes 110gr (supersonic) TTSX is deadly. The TTSX has brutal terminal ballistics and with good shot placement will take down a white tail or a hog say under 200 lbs.
Which has less recoil... it depends on the bullet weight, the muzzle velocity, and the gun weight. A heavy barrel 223 bolt-action rifle shooting light bullets fast (like a 50-60gr) will typically have a really light recoil, less recoil than say a short, skinny barreled AR15 shooting 110gr bullets supersonic. Both will be manageable. MY 12 year old daughter has shot my Savage 223R bull barrel bolt-action with Black Hills 50gr bullets with no problem.