Sierra Bullets Infinity 7 Exterior Ballistics Software

by
posted on December 30, 2014
** 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. **
sierra-bullets.jpg

Many forces act upon a bullet in flight, and as the distance of a shot increases, so too does the influence that these forces can have on a bullet's trajectory. Shooting at close range may not require the shooter to compensate much for these variables, but the further out a shot is taken, the more a rifleman must account for these effects on the projectile. Many will find that for shots made beyond point-blank range, a little computational assistance is appreciated-and for hits on targets at extreme range, can even become essential.

Enter exterior ballistics software programs like Sierra Bullet's Infinity line, now in its seventh version. Infinity 7's ballistics calculator allows users to generate their own customized range cards taking into consideration the specific firearm being used, the particular bullet selected and any environmental conditions like winds, elevation, barometric pressure and temperature.

Infinity 7 allows users to save firearm configurations for multiple guns-which includes data on cartridge chambering, sight height, barrel length, barrel twist rate and more. The program contains bullet information as provided by the manufacturers, but also allows the user to change this data if actual conditions differ from what is advertised on the box. Infinity 7 is highly customizable, allowing users to create range cards with all the information they want-and only the information they want-included.

The program also generates trajectory charts of the calculated data to visually represent bullet path, energy and velocity downrange, and the wind drift. The calculator can run multiple simulations at a time, allowing users to compare the external ballistics of several different loads simultaneously. Other features include twist rate and recoil calculators, and the ability to encrypt and password-protect your data.

Sierra's Infinity 7 Exterior Ballistics Software is compatible with Windows 2000, 7, 8, Vista or XP. A Suite version, which includes the Sierra Bullets 5th Edition Reloading Manual on CD-ROM, is also available. Price: $40, $60 (Suite). Contact Sierra Bullets, 1400 West Henry Street, Sedalia, MO 65301; (888) 223-3006; SierraBullets.com.

Latest

Google Ai Logo
Google Ai Logo

AI Summaries Reducing Firearm-Related Web Traffic, Sharing Incorrect Information

"[T]here are increasing concerns about how frequently AI systems invent false information—AKA hallucinations—with error rates in some tests reaching as high as 79 percent.”

Preview: Rite In The Rain 25 Meter M16A2/M4 Zeroing Targets

Precipitation and humidity can render a standard paper target unusable in only seconds, which is what makes Rite In The Rain’s line of weatherproof targets such a godsend for outdoor shooters.

Smith & Wesson Model 1854 Now Available In .30-30 Win.

Smith & Wesson expanded its Model 1854 series of lever-action rifles with several .30-30 Win.-chambered variants, just in time for deer season.

Preview: Making The Enfield Pattern 1853 Rifle-Musket

In Making The Enfield Pattern 1853 Rifle-Musket, author Peter Smithurst details the tools and processes used to produce this historically significant firearm.

Gun Of The Week: Charter Arms Double Dog

For this Gun Of The Week episode, we’re on the range with a convertible wheelgun from Charter Arms, and it’s one that goes from .357 Mag to 9 mm Luger quickly and easily. Welcome to the Double Dog.

The Armed Citizen® Oct. 17, 2025

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

Interests



Get the best of American Rifleman delivered to your inbox.