I use a 17 in. square plate panted white, with a 2 inch black dot for an aiming point.... Works great.
I also set up a camera with a35x zoom to record my shots...review at the range or at home. I record my load, rifle, conditions etc. Also very neet to show any visitors the video, which will include the bullet trace. Spooks people when you tell them they can see the bullet!
