In European 3D archery we've (besides a few "uncommon" ratings) two basic rating systems:
One kill
The yellow, red and blue area is "the kill":
- First arrow - Kill: 20
- First arrow - Body: 16
- Second arrow - Kill: 14
- Second arrow - Body: 10
- Third arrow - Kill: 8
- Third arrow - Body: 4
Split kill
The yellow and red area is the center kill. The blue area is the kill.
- First arrow - Centerkill: 20
- First arrow - Kill: 18
- First arrow - Body: 16
- Second arrow - Centerkill: 14
- Second arrow - Kill: 12
- Second arrow- Body: 10
- Third arrow - Centerkill: 8
- Third arrow - Kill: 6
- Third arrow - Body: 4
These ratings follow the concept that you score more points if you hit the lethal point of the target to maintain a "hunt like" environment.
Split kill: Green Arrow 20, Red Arrow 18, White Arrow 16
This makes sense imho due to the fact that you hit the heart in the "Centerkill" or the lungs in the "Kill":
However, I noticed (at least) in the US the 3D rating is by far more complex:
I don't get a few things about this system. For example I feel like that you have to explicitly aim for the "non-scoring" point to hit it, what makes it a little bit useless. How did this system evolve and how does it make sense?