Tuning FX M3 Barrel differences

200 yards is a looong way for an air rifle. The longer barrel is going to be your friend. It should give you a bit more power and/or efficiency.

Jesus you ever shot the Impact series?? Lol. Ive hit 200 yards easy with a .25 or .30 cal over and over. 2 inch groups at max. 



But for 200 yards probably want that 700mm sniper set up.