Thermion 2 XQ50 Pro

If you hunt open ground, it is worth a close look. The 50 mm F/1.0 lens and 384x288 sensor give a rated 1800 m detection range with a narrower 7.5° view that keeps distant animals larger on screen. It mounts in standard 30 mm rings and runs up to 10 hours on its battery pair.

Mount it in 30 mm rings, set a target at the distance you want to zero, fire a group, then move the reticle in the zeroing menu to the point of impact. Each click moves 13 mm at 3x, 6.5 mm at 6x and 3.25 mm at 12x at 100 m, so zeroing at higher zoom gives you finer steps.

Reach, run time and toughness. The 50 mm lens gives long detection, the dual battery system (external APS2 plus internal APS5) runs about 10 hours, and the metal body is IPX7 waterproof and recoil rated to 6000 joules. At 0.9 kg it is not light, so plan your rifle setup around the weight.