Berger Bullet website with G7 Drag info and freeware program download, small and quick for a basic fast program that is a click and use non installing program that can be put on a thumdrive.
Nikon's Spot on in the Mil Dot reticle is nice to see the bullet trajectories on a standard 2.5-10x42mm Mil Dot Optic for what caliber and velocity you select, I wish it had Mil data for drift, but it is a MOA adjustment optic. It does have a ballistic table to access but no Mil drift or drop. Eye Candy and multiple caliber / BC listed.
Nikon Spot On™ Ballistic Match Technology Program