I have had a Kowa TSN601 since about 1992 that I have used for high power rifle competitions. I don't remember if I have a 20X or 25X eyepiece. At 200 yards, I can barely see 30 caliber bullet holes, and I have to rely on the markers put in by the pit relays. When I switched from an M1 and M1A to an AR, it was almost impossible to see the bullet holes unless I was at Camp Perry and the target was back lit. I think that you will be hard pressed to find a spotting scope that will allow you to see bullet holes at 200 to 300 yards, no matter what the price.