F class, long range bench rest, and long range hunting are three areas where a high quality, precision scope is super advantageous, in fact almost mandatory to make good shots.
In Fclass, the V ( or X ring) is 1/2MOA, and the bull is 1MOA.
In relative ( but not EXACT) terms for the 1,000 yard target, that is 5" for the V and 10" for the bull . shooters either turret over for the condition or hold over, and being able to see the scoring rings to do that is very important.
The course of fire is either ten or 15 rounds for score, from 300 to 1,000 yards, depending on the club running the match, and in a big match there is not much difference in points or X count i the first five places
1,000 yard bench is much the same way, the Williamsport club for example , shoots, ten rounds for score and group size at 1,000 yards.
For long range hunting , a variable power scope that is capable of running a higher magnification is desirable , so the hunter can place his first round into exactly where he wants to drop the animal.
Variables are pretty much mandatory in all cases , because at times the higher power is distorted by the light conditions, mirage, etc., so the scope power can be turned down slightly. The other day at 1,000 we had so much mirage coming off the snow , most shooters were down to about 25X from 32X or 40X.
Hope this helps explain why at times high powered scopes are important.
David