Home Forums Hunting & Shooting Long Range Hunting Which chronograph?

This may not measure up to LR standards, but asking here anyway. Out to 500-600 yards, what do you use for chronograph? Muzzle data is easy to collect, and Labradar will measure out to 100 yards. But what do you use downrange? Setup a secondary chrono? Would like to understand the bullet speed downrange as well as muzzle.