Fill me in on your expertise at range design?
As a former Army officer and OIC at tank gunnery ranges (and now NRA-certified instructor), we had to clear a range fan of 50 kilometers. I'm used to looking at every conceivable ballistic outcome. 30.06 maximum range is roughly a mile. I'm pretty sure most people here don't own a mile downrange and still manage to shoot safely.
If there is a single human habitat in the range fan, I want to know about it, even if hitting it would necessitate firing over a ridge, which is the case. This seems like an ideal application for drone use as I can use an app to generate a search pattern almost automatically.
Going off topic but if you are building a range the NRA's "Shooting Range Sourcebook" is the bible. $20 on CD ROM.