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By Mark Descalzo

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BulletDrop is a simple external ballistics calculator for iOS. It accepts inputs of bullet weight, ballistic coefficient, muzzle velocity, sight height, zero range, wind speed & angle, etc and calculates velocity, energy, flight path, and drift. Output is displayed in selectable increments out to ranges of 100 to 2000 yards. The default is 50 yard increments out to a range of 1000 yards. You can change these selections in Settings.

BulletDrop is intended for reloaders and shooters of all varieties. It gives them an idea what various cartridges and load recipes will do at the range. The information provided is in no way a substitute for actual range time. Get out and shoot!

What's New in Version 3.1.1

* Fixed bug causing black screen and crashes

iPhone Screenshots

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Customer Reviews


A good, basic, straight-forward ballistic calculator. It lacks some of the nitty-gritty stuff offered by others, but that is part of what makes it what it is: simple. Simple to set up, simple to see, simple to use. If you're just starting out in long-range ballistic calculations, this is my top recommendation for an app to get your feet wet, or to just get you a quick down-and-dirty number to use to make a distant shot. If your target is a 16"x16" steel plate at 600 (or even 800) yards, you really won't need any other app! If you decide you want to start shooting clays at 600 yards, then you might want to consider one of the more involved (and more expensive) apps.

Perfect Long Range Hunting Tool

I have had this app for 3 years and am very impressed with the simplicity and accuracy with which I can hit my target using the ballistic calculator. l used the App hunting for the first time and I shot a mule deer at 435 yards with a 270 WSM. It dropped after a perfect one shot placement. I highly recommend this app for any serious Long range hunter or target shooter.

Exactly Accurate

I used this app for a mule deer hunt with my quarry at 435 yards. First time took this app to the field. All data and atmosherics entered into my iphone for the perfect one shot that hit the vitals to harvest a magnificent mulie. I trust this app. Worked in practice at the range and proven in the field.

View in iTunes
  • Free
  • Category: Sports
  • Updated:
  • Version: 3.1.1
  • Size: 1.4 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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