The most accurate buck grunts and Challenge Wheeze? of any deer call we have ever made and when you need that Magnum volume to get a response from a mature buck, reach for the Magnum Roar ! This is our loudest most accurate sounding Buck Roar EVER!!! No other call on the market can so accurately reproduce this sound. When proto-typing and testing this call Will Primos was able to call in the largest buck he has ever taken in his home state. Believe us it works!