I have the very same chrono-------same screens. My cardboard screens have bullet holes as well. Didn't come that way. I don't believe new screens are available. Bought mine in 1987, I think. At that time price was $115 plus tax. Same as today. Shooting chrony offers a trade in on any chrony working or not for a new one. Sounds good til you find out the $25 rebate (F1) model will cost you almost that to ship it back. I don't know how accurate mine is. All I know is that its repeatable. Same loads back then give same results today--repeatable. Good enuf for me.