15
14
RANGING MODE EXPLANATIONS
The Razor
®
HD 4000 provides two range modes: HCD
(Horizontal Component Distance) and LOS (Line of Sight).
Both modes offer a Scan feature.
HCD Mode
The HCD range display is intended to be the primary
mode—used for most rifle and archery shooting
applications. The yardage number displayed is the critical
horizontal component distance.
500 Y
ard L
ine o
f Si
ght
Horizontal Component
Distance: 385 Yards
Using the HCD Mode
• Use the HCD range mode in the following situations:
• Rifle shooting on level ground at any range.
• Rifle shooting out to ranges of 800 yards with mild slopes
(less than 15 degrees).
• Rifle shooting out to ranges of 400 yards with moderate
slopes (15 to 30 degrees).
• For all archery shooting.
The displayed HCD yardage number is corrected for shot
angle and needs no extra user input; shooters simply use the
appropriate level ground bullet drop and wind adjustment for
the range displayed and shoot. Archers use the appropriate
level ground sight pin for the range displayed and shoot.
