cest pas si facile que ca....
Premierement tu dois faire un "Tuning" du fleche pour quelle sois aligner dans le "Center" de l'arc.
You can only achieve this with Paper Tuning. Once your can shoot bullet holes in a paper test at 3 / 5 meters then your arrow will be flying straight. Once that has been achieved you will be able to set your LEFT / RIGHT at 15 / 20m. 5-10 will usually always be right in the middle as the arrow doesn't have enough time to swing!
at 20 m you might have some left right issues... correct those first. then mark your 10-15m it will probably be the same pin...or level depending on your sight!
next you shoot at the various distances... i go from 15-20-25-30-35-40-45 ! i doubt you will be shooting more than 45 unlessy our shooting fita!
good luck

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