I shot the Helos this week on a new 6mmbr I built for a friend. Optics were not quite as sharp and my Vortex Viper HS, but adequate enough to spot bullet holes at 300 yds. However the reticle etch is so wide that the crosshairs pretty much cover up a one inch dot at 200 yds. under max magnification (34X). It's an FFP so reticle grows with increased magnification. I didn't have a chance to perform a tall target test, but will in the future to check tracking.