Need advice. I intend to zero my rifle at 300 metres. Next I will set up very large cardboard targets at 100, 200, 300, 350, 400, 450, 500, 550, 600, 650, and so on out to 1000 metres. These targets will be large enough to capture the bullet. If I measure the drop and mark it so I can see it through my scope I should be able to create a reticle diagram with range holdover points without any calculation required. Just range refer to diagram and boom. Dinner is served. Is anyone interested or kind enough to advise.