The S510k Superlite special is probably the pinnacle of the S400/410/510 range. Gone is the regular bolt action and in its place is a side lever that is slick and quick to operate; it is designed to be so smooth. A gun that a shooter can cock and load the next pellet whilst never removing their eye from the scope. Also, the S510 comes with a bull barrel that is aesthetically very pleasing and is devastatingly accurate, as well as incredibly quiet. The S510 is based on S410 technology. The S410 is the multi-shot derivation of the S400. It borrows all of the refinement and development from the s400 series, but it also adds a 10 shot magazine system that makes the s410 extremely popular with hunters and plinkers alike. In classic form, it has a great shot count, a superb adjustable trigger and is both well-proportioned and elegant.
(The S510K Superlite comes in standard format, the Superlite is about 10cm and 10g lighter than the classic. Both are extremely accurate, but the carbine can be easier to use for shooters of small stature or shooters who want a rifle to be compact for hunting).