Bought one with out sights . I new I would be scoping it for 25 -35 yard shooting . Cleaned the barrel and lubed the rifle . Trigger was set at 2.25 pounds so I left it alone . Adjusted the hammer travel and pre load spring to max power . 7.8 pellets are 640 fps and 10.5 cph are 540 tethered and regulated at 1500 psi . Since I am tethering I did not do a shot count per fill . At 1800 psi it had the 10.5 at 545 fps . Sighted it in on paper with the 10.5 at 25 yards . 3 shots dime size with non weighed or sorted pellets . Pulled the paper and shoot spinners for 3 hours with it . Was able to adjust the stock for a good fit and enjoyed a accurate shooting day with it . Marvin