Kestrel 4500 Horus (Ballistics) - Manual (Page 5)

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• In cases where the bullet is supersonic, there are no
dots next to the muzzle velocity value.
MV-Temp Table
This allows you to enter and maintain a table of muzzle
velocities based on temperature. If an entry is input
into the table, the muzzle velocity is applied at all
temperatures (this means that the value is then locked
and cannot be altered by using and on the gun
information screen) If two or more entries are input
into the table, the Kestrel uses the linear interpolation
and the temperature sensor to determine the appropri-
ate muzzle velocity (Note: this value will only change
if the temperature changes and you exit and re-enter
the gun information screen; once a muzzle velocity
value is entered for a particular temperature, you can
not make another muzzle velocity value for the same
temperature.)
• To access MV-Temp table, scroll to MV (Muzzle
Velocity) to highlight it and press , then use
to scroll to MV-Temp and press to enter.
• Press while “New entry” is highlighted to enter
the Table Item screen.
• Use or to scroll to “Temp” and “MV”. Use
and to adjust each value.
• To clear a Table Item, scroll down to Clear and
press .
• Press to exit to return to the Gun Information
screen.
BC-Dist Table
This allows you to enter and maintain a table of ballistic
coefficients based on distance. If only one entry is input
into the table, the ballistic coefficient is applied at all
distances (this means that the value is locked and cannot
be altered by using and on the gun screen). If two or
more entries are input into the table, the Kestrel uses the
linear interpolation and the target range to determine the
appropriate ballistic coefficient (Notes: this value will only
change if the target range changes; once a ballistic coef-
ficient value is entered for a particular distance, you cannot
make another ballistic coefficient value for the
same distance.)
• To access the BC-Dist table, scroll to BC (Ballistic
Coefficient) to highlight it and press , then use
to scroll to BC-Dist and press to enter.
MV
feet
p er sec
MV-Tem p
Muzzle velocity
2900 f p s
Tem p
MV
Clear
Table item
10ºF
2900 f p s
MV
BC
BW
BD
GUN Laru308
• 1360f p s
0.470
175 g r
0.308in
MV
BC
BW
BD
GUN Laru308
• 1103f p s
0.470
175 g r
0.308in
Figure 1 Figure 2