Kestrel Meter 4500NV Horus ATrag Ballistics

 

The Kestrel 4500 NV with Horus ATrag Ballistics allows you to load, customize and store multiple guns, rounds and targets. Target parameters include distance, angle, longitude, speed, direction and wind. Kestrel's highly accurate measuring and averaging of wind together with built-in digital compass for target bearing and wind direction assists in defining the target winds. The Kestrel 4500 NV with Horus ATrag Ballistics is available with Bluetooth technology, which allows you to communicate with your Kestrel wirelessly at a range of up to 30-feet, and maximize the battery life of your meter.

 

Pre-programmed Guns: This unit can be used with any combination of scope and reticle, here are several pre-programmed guns that come in each unit: 

Gun	New Gun	223-BlkHill	308-M24	308-Scout	300-Win	338LabBlkHI	50BMG-HSM
Muzzle Velocity	2900	2900	2600	2503	2900	2850	2905
Ballistic Coefficient	0.533	0.372	0.496	0.365	0.533	0.567	0.994
Bullet Weight (grains)	190	77	175	150	190	250	750
Bore Diameter (inches)	0.308	0.223	0.308	0.308	0.308	0.338	0.500
Zero Range (yds)	100	100	100	200	100	300	600
Bore Height (inches)	1.90	2.95	1.85	2.25	1.90	2.00	2.50
Rifling Twist (inches/revolution)	10.00	7.00	7.00	12.00	10.00	9.00	12.00
Rifling Twist Direction	Right	Right	Right	Right	Right	Right	Right
Click	1/tmoa	1/tmoa	1/toma	1/tmoa	1/tmoa	1/tmoa	1/tmoa
*With the exception of New Gun, these can be removed/overwritten with the use of the Gun Loader software distributed by Horus Vision.

 

Once you’ve built the gun that you’ll be using (and you’re at the range of course), you need to enter the target range into the Kestrel, as well as the latitude (if you’re concerned about the coriolis effect), then either manually enter the wind or use the auto capture feature to capture the wind speed. 

 

The Bluetooth serves to connect the computer to the Kestrel if the user is interested in logging weather data (just like in the non-Horus version) and uploading to the computer, or the user can utilize the Gun Library software created by (and available from) Horus Vision.  This software will allow customers to build guns on their computers, download them to the Kestrel, or upload guns they’ve modified in the field.

 

Horus software that comes with the 4500 Atrag Ballistics is the civilian version. The military version of the Horus ATrag Ballistics software is only available via special GSA contract to officials with the correct security clearance. The software that ships with the Kestrel 4500 Horus ATrag is version 4.61. It is possible to upgrade the firmware as new versions become available, however it will need to be returned for firmware updates.  Version 3.0 is not upgradable.  You can tell which version you have by just turning it on, you can not tell from the outside of the meter.