Springer it is. Scope is supposedly purpose-built for a springer.

I hope to replace the spring-piston unit with a nitro-piston unit fairly soon.

The double recoil of the air piston slam hitting its forward limit followed immediately by the spring-recovery slam recoiling backward is noisy and a bit alarming.

I am trying to learn what I heard called the "artillery hold," which is as you describe: resting the forestock near its balance point on top of my closed hand, and only lightly holding the stock with my trigger hand without tightly pressing the stock to my shoulder.

Because this is not at all what I recall from shooting a NATO-round military rifle years ago, or what my 12 guage instructs me to do, shooting the .22 pellet gun requires a conscious change of mindset with which I am struggling. Good thing it is so much fun!