It also depends on the facilities.
For instance, i travel 45 mins to Weymouth, or an hour to Bisley... i could go to my local club, but it has naff all. My indoor club does me fine some days.
If you're out in the middle of no-where, you may be able to leave a permanent course out, build a sheltered plinking range, etc which may attract people from afar... like i say, it's a black hole up there and i think it's quite a catchment area. I know people from salisbury who shoot in southampton!
BFTA/NSRA County Coach
CSFTA Chairman/BFTA Rep