Hornady 4DOF Ballistics Calculator Now a Free App

by
posted on November 15, 2017
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
hornady_lede.jpg

Since its 2016 introduction as a website version, the state-of-the-art Hornady 4DOF (4 Degrees of Freedom) Ballistic Calculator has become a go-to resource for those seeking more accurate trajectories, especially at extreme ranges. Now the 4DOF is available as a free Ballistic Calculator App, which features the 4DOF as well as a standard BC (ballistic coefficient) calculator.

The calculator provides trajectory solutions based on Doppler radar, making it more accurate for long-range hits than using BC-based systems or custom drag curves based on limited data collection points. The calculator comes pre-populated with certain Hornady bullet files, including ELD-X and ELD Match bullets along with appropriate BTHP bullets. In addition, popular long-range projectiles from other companies like Sierra, Berger and more are included. Users can enter their own G1 or G7 BC, or choose from the entire lineup of Hornady bullets and ammunition in easily filtered pre-populated lists. 

"Current ballistic calculators provide three degrees of freedom in their approach; windage, elevation and range, but treat the projectile as an inanimate lump flying through the air," said Dave Emary, Hornady chief ballistician. "This program incorporates the projectile's movement in the standard 3 degrees but also adds its movement about its center of gravity and subsequent angle relative to its line of flight, which is the fourth degree of freedom."

                                        

The app is available on both the Apple and Android app stores and allows users to calculate trajectories in areas without wireless connectivity.The Hornady Ballistic Calculator App is Bluetooth enabled and will toggle with select wind meters. The App also allows users the ability to create "favorites" (rifle/scope/ammunition combinations) and save them for repeated use.

For more information visit hornady.com

 

 


Latest

Ruger Beretta Agreement F Updated
Ruger Beretta Agreement F Updated

Beretta Holding and Ruger Agree to Partnership

Sturm, Ruger & Co., Inc. and Beretta Holding S.A. have announced that both companies are entering into a strategic cooperation agreement.

Return of the Encore: T/C Arms Brings Back Its Iconic Single-Shot

In 2024, former owner Gregg Ritz purchased Thompson/Center Arms. Now the company has introduced a modern take on its classic Contender/Encore concept: the ENCORE PROHunter.

7 New ARs for 2026

While it's certainly a saturated marketplace these days, the AR-15 has never been more popular with American firearm enthusiasts, and many manufacturers are continuing to feed the need with new options loaded with new features.

The Armed Citizen® May 4, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

The Drawbacks of Being a Numbers-Oriented Gun Guy

Like any hobby or pastime that is in any way even vaguely related to machines or technology, firearms attract a (possibly) disproportionate number of “right-brained,” STEM-oriented personalities who like numbers.

First Look: MDT Hand Cannon Slingshot

Slingshots are fun, but they can also be a legitimate backup defensive tool—in 2023, a 13-year-old Michigan boy saved his 8-year-old sister from being kidnapped by using a $3 slingshot to fire a marble and a rock at the assailant, striking him in the chest and head.

Interests



Get the best of American Rifleman delivered to your inbox.