The 10x for hunting was just curiosity. The one time I went elk hunting a 1-4x would have been ideal (looking at you MTAC).
I have an old Ruski 8x 56mm with a German fence post reticle on a back up hunting rifle. A bit much magnification, but even with the crappy glass it has better night resolution than a varix3. Plus the fencepost stands out like magic without ilumination, even when dark.

As for the 600yard limitation, I am being realistic about the next few years. Until my brood is older my range time is limited.