Fullbore refers to 308 Win and 223 Rem target rifle shooting at ranges of 300 to 1000 yards.

Rifles used are bolt action, single shot, heavy barreled rifles.

Iron sights are used and the trigger weight has to be a minimum of 500 grams.

Shooters can use padded jackets, slings, gloves, and a ground mat, all firing is done in the prone position.

Hand Loaded ammunition is used.

Matches consist of 7, 10 or 15 scoring rounds preceded by two sighting rounds.

Target markers are used to indicate the location and value of the shots on the targets.

In "F" Class any safe rifle and any sight along with a bipod or rest can be used.