Interesting timing as I own the same rifle and just took it to the range today. Best I could do was about 1.5 inches for 3 shots at 25 yards off a rest. I tried resting the rifle with as little contact as possible as well as holding it snug and it didn't make any difference.
It is pretty quiet compared to a normal springer but I expected it to shoot under an inch at 25 yards. I'll clean the barrel and see if any screws are loose and try some different pellets next time out.
