Amazon.com: Ballistic Precision Chronograph 30-9999 FPS Speed Meter Large Effective Area Meter Used for Tennis Badminton Shooting Chronograph Shooting fps : Sports & Outdoors
Could anybody identify the make and model of this marker? My brother gifted this to me and I want to go play, it's shooting at 230 fps but I don't know how
Have You Been Measuring Your Gun Power Wrong? | Abbey