NOPE.IN THE END IT RESTS IN THE HANDS OF THE PERSON SHOOTING.THE ONLY REASON I WANT A NEW BOW IS THE NEWER ONES ARE LIGHTER,SHOOT FASTER,HAVE MORE LET-OFF,AND ARE QUIETER THAN MY 5 YEAR OLD FRED BEAR.BUT,MY FRED BEAR WILL KILL A DEER JUST AS DEAD AS ANY OTHER BOW OUT THERE.IT'S UP TO ME TO PRACTICE AND SCOUT AND PUT UP STANDS.A GOOD BOWHUNTER HAS TO BE MORE THAN JUST A GOOD SHOT.