For my little Remington mini Mauser, the Winchester 123gr. sp. groups the best. As good as any of my reloads.
That said the Privi, S&B, Fiochi, Federal, Remington have all performed well on hogs and deer. If under 200 yards is expected I carry the 7.62x39 almost every time.
I just bought another case of the Winchester load last weekend.
Now, the Wolf, Silver Bear, Brown Bear, in other words the Russian ammo performed very badly. Unless a major bone was struck they just seemed o pencil thru. Exits were all very small.