After removing 12 Chippers last year ( 11 with the Gamo and one with the 850) I had not seen any till a few days ago but not till today had I had a chance to get shot off. Crummy rainy day so I was hanging by my shooting window when I see this guy at 20 yards, pick up the 850 and take a shot and miss, a little later I see him at 30 yards and try again and miss again. I knew it was a little over due for a co2 change , he comes out again in the same spot so I get the RS3 and load a crowmag and miss again! I change the co2 in the 850 and check the zero with some cans around my yard and it seems good so I sit and wait. An hour or so later hes back in the same spot so I try to open the window slowly but hes wised up now and takes off in to the bushes ( They seem to be slower learners than tree rats with them I usually get only one shot and then they are watching the window) About another half a hour and hes back about 30 yards again, I open the window very slowly and just enough to get the barrel out and be able to see with the scope, hes kind of looking but still there, I aim at the sweet spot and send the CPHP away, The impact flips him back a foot or so and a few twitches and hes rose food. I go out with the camera and see the CPHP had gotten him in the right ear, now I should have flipped him over for another shot but with the weather I got the camera back in the house, When I go back to plant him for rose food I pick him up and find the CPHP exited right out the left ear!