When Hornady discontinued their 7mm 120 gr. ssp I contacted them to see what they recommended. They didn't tell me they were the same, but they DID say that the 120 gr. V-Max should perform well on deer at 7mm TCU velocities, which is what I had been shooting the ssp out of.
Internal construction may be very similar, but obviously the polymer tip on the V-Max is different. "Similar performance" was probably the point being made rather than "identical bullets".