>>1907932this
>>1907938I'm not as good now as i used to be, but as a teenager me and my mates spend pretty much every lunch hour for a few years chucking rocks at each other. Probably a few hundred hours worth of practice all in.
initially none of us could hit anything bigger than a door sized target (getting stones through a tennis court door was how we started) within a couple of month we were chucking them at each other and playing chicken (we'd be hit body shots most of the time if we didn't move) at 30m, within a school year we able to consistently hit head sized targets at about the same distance
by the time we left school we were able to knock pop cans over as often as we'd miss at about 45m
we used to clean up at the county fair with the ball throwing games to the point they wouldn't let us play more than a couple of games each