Well, two things.
1. Most people bullshit their accuracy claims.
2. Your guns are probably not that great, no offense.
Assuming guns are field legal, under 400 FPS with .2g and not greater than 1.5J using heavier ammo, a well upgraded gun can hit a one foot grouping or better at 200 feet. You can still accurately engage targets beyond that, but by the time you get to 250 feet you're either cranking your hop up or lobbing. You can hit shit at that range, but you're bullshitting yourself with a numbers game where you're using extremely impractical shooting trajectories.
The other thing people like to do is shoot into a field and misjudge distance. Since BBs are small, people always think they are flying much farther than they actually are.
Guardians of Asgaard - KF32
VFC H&K 416C
VFC KAC SR16 JL Billet SBR
TM FN Five-seveN