Effective August 1, 2009, the Indiana Department of Natural Resources changed their guidelines for distance learning. Students are now required to spend a minimum amount of time on each course page before proceeding to the certification exam.

Click here to go to the latest version of the Today's Hunter in Indiana online course—the official hunter education course of the Indiana Department of Natural Resources.

A Rifle's or Handgun's Caliber

Caliber is used to describe the size of a rifle or handgun bore and the size of cartridges designed for different bores. Caliber usually is measured as the diameter of the bore from land to opposite land and is expressed in hundredths of an inch, thousandths of an inch, or millimeters. Every rifle or handgun is designed for a specific cartridge. The ammunition must match the data stamp on the firearm.