The Vortex® 30mm Bubble Level is a must-have to keep your shots at a precise and accurate range. This Vortex level is one of the most precise measurements for long-range shooting. When you’re measuring the distance between you and your target, use the bubble level to ensure your rifle is perfectly vertical to eliminate potential error caused by shooting a canted rifle. Once you’ve improved your shooting accuracy, you’ll always rely on the Vortex® 30mm Bubble Level to help you get the shot to hit your target.