He designed the reticle and on his websight he offers several different scopes that he has put the reticle in.
I found it on Ebay 18 minutes before the auction was finished, so I looked it up on his site, saw that he wanted $1250.00 for that particular scope. I waited until it was 30 seconds to the end and put a bid on it, I got it for slightly less than half of what he wants for one. Mine is on a VXIII Long Range 30 MM SF 4.5x14, but he makes it in several scopes up in quality to Schmidt Benders.
Oddly enough I had met Holland, down in a dark snowy canyon above my house while elk hunting years ago, he was elk hunting there also, I knew him by reputation as a gunmaker, but had forgotten about the experience until I looked up that scope on his web site. Small world indeed.