So I sat here in my shop smoking a pipe and read this entire thread. It reminds me of a similar situation in NRA Distinguished Revolver. A few years ago when they started the DR matches it was determined that the thing to do was make it so that anyone could compete. So they said you had to shoot a bone stock revolver in .38/.357 (had to shoot .38 special loads) and you HAD to shoot ONLY factory loaded 158g LRN or LSWC. I'll just say it right now, that was stupid. It kept a TON of people away from it because number one, you could hardly find factory loaded ammo and number two the ammo you could find was horrible at 25 yards and at 50 yards it was nearly impossible to keep them in the black regardless of the gun used.
Fast forward a few years and someone got wise. Now you can shoot "stock" revolvers in .38/.357 (still have to shoot .38's). BUT, you can reload your own ammo as long as it is a 158g RN or SWC. Now TONS of people are shooting it doing very well and getting distinguished. It has brought quite a few shooters back to the sport because while they may have earned their Service Pistol Distinguished they now have something new to strive for in the sport. In the end, opening up the rules did more good than stifling them.
Personally, I'm not in favor of "limiting" rules. Hey, if I want to go out and spend $5k on a rifle just to shoot a heavy bullet that is going to allow me to buck the wind while it beats the living crap out of me because that is my idea of a great time even if I stink because of it, who are you to tell me I can't "waste my money"? Is this a target sport or not? Do you see pistol shooters whining and saying, "That guy uses a red dot" or "That guy has a shift stick for movers", or "That guy uses a 9mm in center fire instead of a .45acp"? No. You see, as others have pointed out, those who are willing to practice, regardless of their wallet, be it dry fire, small bore, or whatever, winning. People need to learn to look out for themselves. They don't need someone standing over their shoulder saying, "Now, now boys and girls. You don't want to use that bullet because it may cost you extra money and you can't shoot it a 300 yards very good." Let folks alone and let them learn how they choose.
BUT, if you are going to make bullet weight an issue, why not say 210 grains is the cut off so that the guys and gals that shoot the 208's and enjoy them are not shorted for their CHOICE of bullet. Heck, you could even just have a F-T/R "Heavy" class for bullets over 210. Kind of like USPSA where they have Stock, Limited, Limited 10, Minor, Open, etc...But ya, in my opinion saying, you can't shoot this or that weight is a bit stuffy...if I wanted stuffy, I'd shoot International Palma. But then perhaps that's why I'm having a new F-Open rifle built. ;-)