I asked for help and got it. don't let the complexity of the scope deter you from buying and using. - Hi-Lux Optics Automatic Ranging Trajectory ART M1200 6-24x50mm Rifle Scopes, 30mm Tube

I saw this up close at a gun show where the Hi-Lux company had a table. I was impressed with the scope and the man who said he was the ballistics man a Mr. Wu. He said anything I wanted to know just ask. I have bought from and trust Optics Planet so I decided to buy from them. Not only was the price reduced from $597 to $497 plus a $40 discount, free shipping, and no tax. What a deal considering that Hi-Lux main office in about 3 miles away from my house. I saved big from Optics Planet.
The scope came double boxed with cloth, allen wrenches and an instruction book. However, the book is good but their charts are not easy to understand when it comes to setting the cam. I played with the instructions but was still stumped. I thought that even though the deal was great but if I can't figure it out what good is a great deal with if I can't use it. I considered sending it back. I then thought to send an email to the company. I told them my loads and when in a day, this Mr. Wu sent me the settings for the cam. Was I pleased. I have mounted the scope on my rifle and can't wait to sight it in.
The bottom line is Contact Hi-Lux and they will help.