Here is one of the targets I saved from my trip to MA. For a reference, the "9" ring is 4 and 3/4" in diameter, the "10" ring is 3" in diameter and the "X" ring is 1 and 1/2" in diameter. I'm very pleased with The Jewel's accuracy. I can assure you any lack of accuracy is due entirely to me.
Dok
http://boards.rennlist.com/upload/JewelTarget.jpg