J996, simple answer... maybe. In F class you spend alot of time looking at targets when scoring and eventually, you look through a bunch of spotters. In the heat, seeing bullet holes in the white becomes unreliable regardless of what you peer through. And we certainly can enjoy the most expensive spotters from time to time.
My SIII10-50 scope on my competition rifles has let me see 30cal bullet holes in the white at 600m... on a cool overcast day.. so a top tier spotter could do the same BUT the air quality will make it very frustrating as that hole goes into and out of focus with any type of mirage.
Put it anywhere near another object and resolving both becomes a chore ie trying to score a bullet hole near a scoring ring.
If there is a need to see the bullet holes on a target at LR, set up for wireless camera. This works regardless of air quality and makes scoring yourself a breeze.
Costs a heck of a lot less too.
I use my spotter to see the air.... not the target.
Jerry