I had a few hits with 55 Vmax get back up and run last season on running shots that I assume were behind diaphragm. All shots on ones that stopped to pose were DRT. I just wanted more from the .223 so I went to a 24" barrel to get more speed than the 18" I had and went to a hand-loaded 60 grain bullets this season. The 2 I chose were the 60 TMK and 60 NBT. Accuracy was same but I sold the TMK's after seeing poor terminal results at slower .223 speeds. The 60gr NBT's loaded over Benchmark @ 3150fps have been the best balance between accuracy and destruction in the .223 for me. I think the TMK's would be my choice with it's awesome BC of .323 in a 22-250 or similar where I want a bit stouter bullet or an open calling areas out west where they can run and be found easily. Here they run to the neighbors fence and uncut hay fields and you need them to drop right there.
If I were confined to factory ammo, I'd probably run something that uses the 55BT. They seem to keep speed up in .223. I think the tapered jacket would be worth the additional cost over the Vmax in the additional sturdiness required when hitting bone or angled shots. Just my .02
