Haven't had any problems with mine. I love it! My groups are about the same at 20 and 30 yards all being within the size of about a half dollar and at 45 yards they are still ok, about 3-4 inch circle. Only the second year I've bow hunted so I figure if I keep up the practice it will only get better. I'm very confident in taking shots at 20 and 30 yards, but don't like taking shots much past that.