Well, we went to SA, saw, shot, and killed all in our management package, plus one nice gemsbok, which my son took using the 8x57. His scope went south the 2nd day of our hunt, so we rotated my rifle between us the remainder of the hunt.
As I mentioned, the 8x57 load was 52grn of 4320 under a 175 Sierra, for 2850fps over my crony. This bullet has worked very well for me over the past 20+ yrs in my 8mm06AL. and prover as effecient in the 8x57.
We killed a total of nine animals, springbok, wildebest, reedbok, blesbok, and the gemsbok. Ryan killed a springbok and widebest with his 8x300WSM befor the scope on his rifle went.
With Ryans animals, each one shot kills, the 8x57 compiled the rest, all one shot kills. The shots ranged from 80yrds, my first springbok, all yardages called by our PH BTB, to my last of 300, again a springbok. The wildebest were at 200.
I`ve shot this rifle quite extensivly, so comfortable with the yardages. Tested befor the hunt to 400 yrds, MOA at all ranges the norm. I used a lupi scope, 4.5x14, with B&C reticules, but zerroed 1.5 inches high at 200, I didn`t hold off any shot.
So did it kill any better than an 06...I don`t know. I just know we didn`t miss a shot, and all animals either dropped right there, or ran about 80 yrds befor falling...wildebest.
I know we felt comfortable in the country we hunted..open rolling hills and washes..very simular to the Americam West. Also dry, smi-arid and bout 4k in elevation. Again, much like Wy. So the vast expances was to out eyes normal, and we didn`t think the game was further than they actually were. Shooting was great.
I would take this combo back in a heartbeat..