Hornady’s website offers a ballistics calculator as well as down-loadable ballistic chart and their H.I.T.S. calculator to help shooters pick a specific cartridge/bullet for any situation.
It’s free and easy!
Ballistics Calculator
H.I.T.S. Calculator
Down-loadable Ballistics Chart

Hot off the press! Magpul Industries is now shipping their long awaited iPhone field case for the iPhone 3/GS and 4.
iPhone 3/3GS Field Case
The iPhone 3/3GS Field case is available in Black, Flat Dark Earth, Orange and Pink. Retail is $9.95.
Details:
The Magpul Field Case for the iPhone 3G and 3GS* …

With the release of the HTC EVO and Android Ballistic Apps there is a brand new option and offering if you cannot switch from your current provider and go to AT&T for the iPhone. We purchased the EVO so we could start testing and reviewing ballistic apps offered for the Android …

You can now subscribe to i-ballistics and get automatic updates as we continue to grow our reference for ballistic apps and accessories.
Simply click on the subscription option for email and enter your email address into FeedBurner. FeedBurner is a Google product so your in email address and security is in experienced hands. …

The Civilian Marksmanship Program better known as CMP, recently released a great tool for your iPhone, iPad, and iTouch to help you keep score for all CMP matches and events. The app is now available at the Apple App Store for your iPhone and iPad.
The CMP app  is an easy to use …

**Update 2018 ** It seems that most of the GunSim tools are no longer available and many of the links in this post are broken**
GunSim is a great free online tool that will help you understand the effects wind, range, and elevation have on bullet flight and impact. The publisher …

Ballistic FTE is the field firing version of Ballistic: a fast, highly-accurate ballistic trajectory calculator for the iPhone. The ballistic computer calculates trajectory, windage, velocity, energy, and flight time for a projectile at any valid range, and can compensate for atmospheric conditions such as temperature, barometric pressure, humidity, and altitude. …

Ballistic is the definitive ballistics trajectory calculator for the iPhone.
Ballistic calculates trajectory, windage, velocity, energy, and bullet flight time for any valid range, and can compensate for atmospheric conditions such as temperature, barometric pressure, humidity, and altitude (it can also accept density of air or density altitude input).
It’s also much …

5.11 has partnered with Horus Vision to bring their software, usually installed on a handheld PDA device, into a watch platform. Months of development and field testing ensure that the software works with equal precision in a watch format.
Popular among police snipers, long range tactical shooters and big game hunters, …

Knight’s Armament BulletFlight is a military-grade ballistic computer that provides quick solutions in the field. BulletFlight does not output information in table format but rather dynamically gives you the solution you need now to make that shot. Current weather conditions including temperature, pressure, humidity, wind speed, and wind direction can …