Here's the details pbba .308 I'm setting up for long range shooting probably out to 400 yards maybe a little more. 1. Hawke sidewinder 24x56 with parallax adjustment 2. My modified stock valve 3. New bold trigger from john bowman 4. New heavy spring from john bowman to fill to 4500 psi and get a ton of more power 4. Amazon special bipod... 5. Go shoot and have fun lol...