Inch or so. I only shoot three arrows at a target due to arrow damage. Take yesterday for example...25 yards at a deer target. First arrow in the heart. Second arrow is touching the right side of the shaft of arrow one. Third shaft Robinhoods the second arrow. [] Group size about 1/2 inch. I have dipped and crested carbon express, Terminator Hunter 4560' s. Way too much money in each arrow to ruin them.[>:] So far I haven' t pulled them apart but have pulled a part all the other ones cause of cost. We' ll see.