Kowa makes a DAMN nice spotting scope which spots trace like magic --I'm sure there are better but I haven't used them. But it's a target spotter, not a tactical spotter. It's not built for abuse at all, we had to baby the shit out of them and keep them in their covers. I guess we bought ten? for the SDM school when we started it along with angled eyepieces. Great glass, awesome focal adj. for spotting trace and mirage better, 60x was much nicer than the compact 40x's issued to snipers at the time, particularly at longer ranges where you could easily spot 5.56 trace to nearly 1000m (crapshoot to hit anything with an M4 past 600 but fun to try...) and with the tall stand, being able to sit instead of going prone was nice too. At $1600+ in 2002, they were still costly.
I'm considering the Mk4 and ConX/Kestrel package just because I can't afford the Hensoldt.... I wish I could. I need something more "field-worthy" for when I shoot long range in the mountains or desert. Is there another "tactical" (god I hate the fucking word anymore) spotter that's compact, 60x, better than the Leupold but not as nice as the Hensoldt? And tough? With some kind of milling reticle? An in-between-er? Preferably priced closer to the Leupold of course.