I don't own the S-2 Vanguard, but do own a 2007 model and I really am impressed with it. From what I have read and heard the S-2 is improved in several ways. It has an improved trigger, and a better stock.
Mine is a 300WBY, and the factory target is between .6-.7". It is a perfectly suitable hunting rifle. It is all together better built than its competition, IMO . It features a solid bolt, a receiver machined from a solid steel billet, with integral recoil lug. None of the other rifles in it's price group share these attributes.
The Rem 700, the Savage, Tikka, Marlin, ect all have receivers drilled from bar stock, fused, alloyed or partially hollow bolts, and washers for recoil lugs. None of these things detract from their suitability as hunting rifles, but I will accept an extra 8 ounces of weight, for old fashioned solidity.
I have owned MDL 700's in the past and never had any issues with them, but I now consider them over priced for what they are.
I am going to attach the factory target for my Vanguard. I have come very close to this with factory and handloads, but 300WBY isn't the easiest rifle to shoot from a bench, but I nev er missed or lost a deer shot with this rifle. In most cases with a good shot placement it is instant death for a mule deer.
Well for some reason I am unable to upload the file I was trying to attach.