Tj, check your math: 29x11=319. 8x1=8. 319+8=327.
My friend, your just not getting it. There are no bonus points. If a course has 30 targets, the best possible score would be 330. Not 300 plus bonus points.
If, on a 30 target course, you were to count down, you would start at 330, not 300. Actually, you can do it any way you wish, but it' s either going to be wrong or more difficult.
I' ll bet you an ice cream cone that there is no " Bonus" column on the IBO score cards.