I needed a round that was effective on ground squirrels, but also a quiet round (we have a noise sensitive dog). I was using regular CCI Quiet, but I had some squirrels run off after I thought I had hit them. This round works fantastic on them. So far I've gotten three ground squirrels, and only one needed a second shot. Even that one wasn't going to last long after the first shot and only went a few feet. One squirrel, shot in the chest while it was standing, had three exit wounds in it's back - so the segmenting definitely works!