Most game developers have never used the guns they recreate digitally.
That being said, even using flite control is only really effective at 50 yards.
I agree, but it wouldn't take much research to figure it out. I think it's more about balance. If you had actual buckshot shells it would be unbalanced because of the range.
I would say from experience that 50 yards is a good baseline for "max" range, but it does extend beyond that depending on the definition of effectiveness. The spread itself can be seen as an advantage for moving targets because of the volume of lead per trigger pull. 9x more chances can be a suppression tool or hunting. Just one of those pellets can be a fight ender too beyond that range. Hunting, defense, military combat all have different applications.
As you can see here, for scoring a hit the pattern is still very tight at 50 yards. I would not hesitate to fire flite control up to 65 yards in a hunting or specific combat situation. In my experience at about 60-65 yards is where it ends. I've fired dozens of boxes of these exact shells.
But I would guess less than 1% of the deadly force encounters are beyond 50 yards, so alot of buckshot is just overkill for most any defensive situation. The FBI says 7 yards and closer are the vast majority of the deadly shooting. I just know from my testing we were landing pellets at even 100 yards and they were going through 2 inches of plywood. Granted only a couple of them would hit the target each shot, but that's no joke getting hit by one of those.
I would just think if I was developing these top-tier military shotguns or future scifi shotguns, they would have better range than mine and they usually don't come close.