KickingMustang shares the BEST BB weight for your airsoft sniper - YouTube
Valken's recommended BB weights vs FPS... Do you agree with them? : r/ airsoft
Effective and Maximum Range for 6mm BB's
How To Choose The Correct BB Weight - NOVRITSCH Blog
6mmProShop Barrett Licensed M107A1 Gen2 Long Range Airsoft AEG Sniper Rifle (Color: Black / 20" Barrel), Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore