I shot a muskrat today at 120 yards.
I should have taken a picture.
The range attendant told me I couldn't place the pin any closer than 50yds. so I went with it and stuck the little guy at the 50yd. marker. Took aim and wouldn't you know first shot off with his head. That thing went clear up in the air maybe 40 feet high at an 80 degree angle...
I'm by no means good but that made me feel pretty confident with my M4.