I recently bought a Ed Gun Leshiy 2 250 mm .177 cal.. I’m shooting 10.34 JSBs. The gun came shooting 910s, I have tried it set to 850s and 950s. It shoots 1.5 to 2.0 inch groups in all settings at 35 yards. I want 1.0 inch. Is this asking to much for this short barrel? I have two FX and two...