Ammo Twist app for iPhone and iPad

4.9 ( 8629 ratings )

Utilities Sports
Developer: Scott Kehrberg

0.99 USD

Current version: 1.1.1, last update: 7 years ago
First release : 05 Jan 2010
App size: 76.79 Kb

Ammo Twist calculates the barrel twist, bullet length, or caliber using the Greenhill formula. Select the tab of the information you want to know. Enter the two known factors and press the calculate button.

DISCLAIMER: The user of the application accepts all liability for following manufacturer suggestions for the ammunition and firearm used.