If this is your first time shooting you need to zero your AR. Do you have a target stand, targets, and a pair of binoculars or a spotting scope? A marker helps too. You're going to have a hell of a time hitting those tannerite bottles without a zero.
Have you read up on howto get a zero? I like the improved 50 yard battlefield zero. Opinions on this topic differ as well.
I noticed that you have two different weights of ammo. You have M855(62 grain), and XM193(55 grain). Your zero will be a little different between the two.
My objectives, were I taking my AR out for the first time would be to familiarize myself with the manual of arms, get a 50 yard zero, and then have a little fun at different ranges to see how point of aim effects point of impact.
Stick to the basics, sight picture, trigger squeeze, breath control.
Have fun!