I have a question and need some help with the reticle in a scope I just picked up. Its a Vortex Diamondback with the Dead-Hold BDC reticle. Heres a link to the reticle: Vortex Optics - Diamondback 3.5-10x50 Dead-Hold BDC Reticle The BDC dots are listed as being 1.5, 4.5, 7.5 and 11.0 MOA from the crosshair. I understand that 1 moa is roughly 1" at 100yds. In generic terms how would I put the BDC dots to practical use in the field. I'm planning on shooting each dot at 100yds to see where the impact point of the bullet is but wanted to get a better understanding of the reticle itself. Thanks for any input.