Red dot sights are fast and easy to use, but up close, they can be tricky. The dot doesn’t always show you where your bullets will hit. Light moves in a straight line but bullets follow a ballistic curve. In this NSSF Video, Adam Painchaud, Director of the Sig Sauer Academy, explains hold over and sight offset. A little understanding goes a long way, these tips on zero can help you get a precise hit at any distance. These concepts apply to any firearm with an optic set above the bore.