As an answer to the original question, I used to have several hobbies. One of these was target shooting with an air rifle.
The distance over which you shoot is 10 metres and the calibre is .177inch/4.5mm; doesn't sound a lot I know (I've also shot at 600 yards at Bisley but that was with a 7.62mm cal rifle) but you have to take into account you have to shoot from a standing position, you're not allowed to rest any part of your body against anything solid - apart from your feet of course - and the 'bullseye' is 0.5mm in diameter!
I had to give up when I developed high blood pressure; the target never seemed to stay still after that!!
Apart from that I found it very relaxing except when in a competition where you had to shoot a 'full course' which was a gruelling 60 shots in a 3 hour period.