No matter how long the nail or how thick the wood, heads dig in with every shot! 2 inch nails through maple what's the head? is it loaded? She must have missed, shoot again! No it's good! I am amazed at its accuracy, SPEED, depth and battery life. the sharpest tool in the shed (pun intended) and don't worry about the battery charge, your nails won't sink. No gun can hammer a nail with a low battery Use at least half of a charged battery in each nail gun battery! If it is less than half charged,