Hornady has a new 123 gr
SST bullet for the 7.62x39mm. (not V-max). The SST is a great medium game bullet.
I chrono'd it out of my vz58 at just above 2300 fps. At the muzzle the ballistics are not comparable to a standard .30-30 (i.e. 2200 fps with a 170 gr bullet), but due to its improved BC, it catches up fast.
I consider it good hog/ deer medicine.
I have shot many a hog (never deer) with the .223. Using the .223 for medium game, to me, is mostly dependant on what type of hunting you will be doing. Shooting from a blind at moderate distances where a well placed shot can be made (headshot/ heartshot)? Then the .223 will get 'er done.
Stalking/ chasing up game in the woods/ heavy brush where a snap shot to the midsection is the shot du jour? I'd recommend something bigger that will punch through and leave a blood trail/ break bones.
Here is a pic of a dead piggie dispatched with a brain pan shot with a .223. Shot was a 2:00 am with night vision. Hog never new what hit him.
BTW, my favorite .223 hunting load for medium game is a 65gr Sierra pro-hunter over 25.2gr Varget.
I've also had luck with 55 and 62 gr barnes.
- AG