No, I don’t believe it’s a matter of physical characteristics either. I’m 6’4”, weigh 280lbs, have ape hanger arms & giant meat paws! Yet I shoot an AR with the adjustable stocks only 1 position from shortest. A2 stocks feel too long, though I can still shoot them just as accurate. And the Chassis on my bench rifle is maybe set just over halfway to longest LOP setting. While I set things to my liking, it doesn’t affect my shooting. I would adapt myself to the gear I at hand, not the other way around.

I will say though, I’m not Fuj’. I no longer have the eyesight or steadiness of hand to pull off 1/4” or less MOA accuracy. Although, neither do most ​shooters. (Including the ones who think they can!).