I would like to but a 20 MOA scope base on my longrange varmint rifle to get out to 1000 yards once in a while. The scope has 44MOA of adjustment so it seems to me that I will be still able to sight it in at 100 yards if I want to. Or, do have to choose either 100 yards or a 1000 yards? Is anyone else running a setup like this that could give me some input?