200 yards seems too close! That’s short range br territory and you might as well just shoot a ppc or br at that distance. At that distance I see a lot of target centers being punched out! It’s already happening at 600 yard fclass matches and has become a battle for high X count.
I see what you are saying, but I see newbies rather than experienced hands attending 200 yard events. It'll take most newbies a while to come up to speed with precision prone shooting, even at 200 yards. When they top out their skills there, then they may be willing to drive to 600 yard matches a few times a year. I don't think you'll see many custom guns built in wildcat cartridges just to rule the roost at local (possibly even unsanctioned) 200 yard F-Class events. Alternatively, when a shooter maxes out the potential of their centerfire rifles at 200 yards, they could switch to rimfire (a much bigger challenge). 200 yard F-Class could have rimfire and centerfire divisions shooting alongside each other.
And F-TR will still be limited to .223 and .308.
I track a number of 300 yard F-Class matches, and yes, there are a few cleans, especially on still days. But tracking the trends after a new match becomes available at a club, there were not many cleans in the first year of competition, AND even after several years, only 5-10% of the shooters are shooting 600s with more than half the shooters under 590. Scores are even lower at the unsanctioned 40 shot 300 yard F-Class match in central Alabama: no cleans (400) in the five available score reports, and more than half the shooters below 370.
I think 200 yard matches would follow a similar pattern - a few local shooters will figure it out quickly shoot lots of cleans, but the venue will remain a training ground for the other 90% of shooters who have room to improve on their fundamentals and reloading techniques.
Folks may not realize that the NRA Marksmanship Qualification program specifies 100 and 200 yard courses of fire for the F-Class Rifle Course. The NRA views work at 100 and 200 yards as legitimate training in the F-Class discipline. They specify the MR-31 target for 100 yard F-Class and the MR-52 target for 200 yard F-Class. Match directors probably want smaller scoring rings for competition. I think the A23/5 is about right for 100 yard centerfire, and the MR-31 is about right for 200 yard centerfire. (And I agree with the smallbore targets already in use for rimfire F-Class at 50, 100, and 200 yards.)