A mile? Do you realise that there are 8 furlongs in a mile?
where is that?
looks like a site where they have a lot of low flying jets
what do you have around the targets to observe splash? (assuming you don't hit them all first time!)
I have managed to stretch the scope elevation on my 300wm to give me approx 1400yds but would love to try at a mile
I work on a munitions testing range, we can shoot up to 2km here for small arms. Utilised my lunch break for a bit of shooting! There are built up bunds of soil from 100m up to the 2k with hostage targets/ gongs and other various reactive targets placed in the middle of the earth.