It comes down to what factory ammo your rifle is going to shoot the best. Which means your gonna have to buy a few box's.
I have an original VSSF in 223 and it shoots alot of different brands of ammo really well.
If I were you start out with some Winchester Supreme 50 grainers.
Remington Premier Varmint ,,, Hornaday makes some good stuff in 50 and 55 grain.,,, The Winchester (white box ) in a 45 gr hollow point that alot of guys have good luck with.
The only differences in the VSSF and the VSSF 2's were mostly cosmetic, yours has a different stock with a palm swell 2 swivel studs up front.
the metal is polished on the new ones. If yours is brand new i guess yours would have the new Rem trigger as well.