^except how often are you going to be engaging targets at 200ft or less in open ground with a real firearm?
Comparing a firearm to an airsoft gun at the same range is like saying a lamborghini aventador is better than a pedal car at going around a nascar track.
Engaging a target at 250ft with an airsoft gun is like your maximum range. So compare that to shooting a target with an M4 at 600m. Suddenly all that foliage turns into a real big issue when you're shooting through half a forest to hit your target. Branches and sticks will still cause a real bullet to veer off course at long ranges.
Don't just compare directly because it's completely unfair and makes no sense. You have to scale the ranges to relate the physics of both guns.