I bought a pre-owned AA S400 MPR early model from Baker Airguns during the Black Friday sale. Only because of the price and recommendations of “The O”. I’ve never owned or shot a gun of this nature being a hunter by nature. Well, after getting it and finally getting it fill (another story) l put an Alpha 6 on it and sighted in. I got 120+ shots on the first fill. Having never shot a gun of this nature I was amazed at how effortlessly it shoots. 25 yrds...boring. 30 yrds. one shot, then hold over adjustment...boring. It’s so soft and slow (smooth) that it doesn’t seem right. Of course, same results when determining hold over at 40 and 50 yrds. Honestly, it’s not a gun that I’d shoot on a regular basis only because I’m a hunter/pesterer . But sweet nonetheless!!!