I finally got the Texan SS .457 PCP air rifle set up with a scope and some great ammo. Brand new Hawke 3 X 9 Airgun scope first time on rifle. Got it touching holes at 50 Yards in just 6 shots. Operates best at 2700 PSI. On a 3000 psi charge I got 7 shots before I noticed in fall off in trajectory. The rifle is factory suppressed and is very quiet.