I hit a Chimpmunk in the heart at 75 yrds offhand, using my competition Anschutz with iron sights. Wasn't hunting, just practicing for some competition. That and shooting at flys, again with the competition Anschutz with iron sights, in kneeling and prone. Got them probably a good 8 out of 10 times. Can't see them with iron sights just have to look through the spoting scope to see where they were on my target and guess. Usually just see a little tiny blood spatter on the edge of the hole in the paper. One time a teammate of mine shot a fly at 50 yrds and the two wings where beside the whole. The fly was gone. Coolest and luckiest thing I ever saw.