Hornady Enhances 4DOF Ballistic Calculator

by
posted on February 10, 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_ballistic_calc_logo_f-1.jpg

Hornady has enhanced the capabilities of its 4 Degree of Freedom Ballistic Calculator, which was originally launched in August 2016. Calculations with the 4DOF now include earth-based effects, zero angle, range units and temperature sensitivity factors.

The 4DOF calculator provides trajectory solutions based on projectile Drag Coefficient (not ballistic coefficient) along with the exact physical modeling of the projectile and its mass and aerodynamic properties. It is the first publicly available program that correctly calculates the vertical shift a bullet experience as it encounters a crosswind; referred to as aerodynamic jump.

The new features include:

• Earth-Based Effects: Accounts for effects due to rotational velocity of earth as well as earth curvature.

• Zero Angle: Accounts for any changes atmospheric conditions can have on your zero range and subsequent trajectory.

• Temperature Sensitivity Factor: Accounts for changes in muzzle velocity with changes in temperature. Features custom input or general table with commonly used long-range powders.

• Range Units: Allows for range units to be output in yards or meters regardless of standard or metric inputs.

"The addition of these new features will help guarantee the most accurate trajectory predictions available," said Jayden Quinlan, Hornady Ballistics Engineer.

The 4DOF Ballistic Calculator is available for free. It can be found here.

For more information, go to Hornady.com.

Latest

BTB 7Mm RUM Lead
BTB 7Mm RUM Lead

Behind the Bullet: 7mm Remington Ultra Magnum

Launching a 160-grain bullet in excess of 3200 fps, the 7mm RUM is among the fastest commercially loaded 7mm cartridges available.

USFWS Debuts 2025-2026 Federal and Junior Duck Stamps

The 2025-2026 Federal Migratory Bird Hunting and Conservation Stamp—commonly known as the Duck Stamp—became available for purchase on June 27, 2025.

Tested: Work Sharp Professional Precision Adjust Elite Knife Sharpener

Digital Associate Editor walks viewers through the features of the Work Sharp Professional Precision Adjust Elite Knife Sharpener, the perfect tool for a hunter looking to keep all his knives factory sharp season after season.

Recipe: Green Curried Black Bear

Green curry sauce is an excellent base for simmering bear meat, making it flavorful, tender, and safe to consume. Read on for another instant classic recipe from Brad Fenson.

Coyotes to Competitions: An AR-Build for Accuracy

ARs make great coyote guns. But what would the absolute best coyote rifle look like? Digital Associate Editor David Herman builds his take on the best AR for shooters who like to plug coyotes in the winter, and ring steel all summer long.

Pennsylvania Governor Signs Sunday Hunting Bill

Legislation that will fully repeal Pennsylvania’s Sunday hunting ban was signed into law on July 9.

Interests



Get the best of American Hunter delivered to your inbox.