Nice shooting man. I keep a target at 7, 10, 15 and 20 meters and try to consistently move around on them. The ten meter is my catch barrel with spinners 70 to 25 and the rest are all soup cans. It’s good practice.
i was hitting 9cm targets from about 35 meters away, it was extremely hard. I think slingshot's effective shooting distance is within 20 meters (10-15 meters is best for most people).