Nice shooting especially using alloy pellets. Have you tried it with lead pellets yet? My experience in all my rifles is that lead shoots more accurately than lead free. Plus they are cheaper.
Yes, but unfortunately the Umarex CX4 is known for not having the greatest accuracy. Shooting at 25 yards using other pellets looks like a shot gun blast. it amazes me that I was actually able to get a decent group at that distance on the other hand it's upsetting because of the brand of pellets need to do so. The Winchester alloy pellets are expensive.