"5.45x39mm gel test: Hornady 60 gr VMAX"--The Chopping Block (5 min.)
"Hornady 5.45x39 60gr V-MAX From A SBR Ballistics Gel Test (HD)"--Mr. Guns n Gear (3-1/2 min.)
This last video is simply to give you a look at the performance of the Russian military round, the 7N6, which uses a hollow cavity ahead of a steel core, with the intent that the tip will crush on impact inducing bullet yaw and fragmentation. Unfortunately, the 7N6 is no longer imported. However, I believe you can still find it; and one of the reasons that it is still out there is that it used a corrosive primer, so a lot of people didn't like shooting it.
"5.45x39 7N6 Ballistics Gel Test With A SBR'd Krink (HD)"--Mr. Guns n Gear (4 min.)