This is the Swiss Army knife of Bolt Action. We have some of the most commonly used rules right in your hand that you can focus on the perfect strategy to win the day and not paging through the rules. Drop that High Explosive on your enemies with speed and accurate measurements and rules. The arrangement of rings allows for measuring 1", 2", 3" and 4" hits. Also includes a six-inch ruler on the side and a tool for measuring angles of fire.