"We wrote the application for a friendwho is a keen air rifle shooter and wanted a really simple app to just dothis", says Wayne J. Cosshall, Managing Director of TechnoMagickal PtyLtd. "We figured that if it satisfied his need we might as well release itfor others. It fits our aim of providing simple apps to do one task easily andwithout confusion."

It sells for US$0.99 from the App Store:

itms://itunes.apple.com/us/app/air-gun-calculator/id403661770?mt=8