I claim the ornamental design for a riflescope, as shown and described.
FIG. 1 is an isometric view of a riflescope in accordance with an embodiment;
FIG. 2 is a left side elevation of the riflescope of FIG. 1, of which the right side elevation (not shown) is a mirror image;
FIG. 3 is an objective end elevation of the riflescope of FIG. 1;
FIG. 4 is a top plan view of the riflescope of FIG. 1; and,
FIG. 5 is a bottom plan view of the riflescope of FIG. 1.
In FIGS. 1–5, the broken lines indicating environmental features of a main tube, adjustment knob turret, and eyepiece module of the riflescope form no part of the claimed design. In FIGS. 1–3, additional broken lines indicate environmental features of a rifle barrel, scope mounting base, and mounting rings, which form no part of the claimed design.