I have the 25 X LER and a friend has the same Kowa with the 20-60. The higher power is useless. The slightest shack or mirage wipes out the usefulness. At the matches I'm shotting all have pit service using markers. 25X is more than enough.you will be disappointed in thinking a 20-60x will let you see holes at any range except 200. Sometimes at 300 with .223 but after the mirage kicks up the holes go away
I did get my setup from Jim and I'm more than happy with it and his service.