As MS 9x56 said, the 173gr SPCE is my favorite, especially if shots aren't going to be over 250 yds. My No 1 and M77 Rugers love this bullet/weight. That SPCE bullet shoulder will usually cut a very well-defined hole in the hide on entrance (for great blood trails), much like a 38 wadcutter does on paper. That combined with the softpoint construction upset, results in very quick and humane kills......which what I want. The 140gr is slightly faster though performance on game is similar, but I've yet to own a 7x57 that shoots it better than the 173gr. In my experience, that 173gr SPCE simply anchors game whether it's US small-med game, African plains game or European deer and wild boar.