I have some questions about MOA dials vs. BDC dials. I am new to LRH and I value your opinions about this. I have a Win Model 70 .270 WSM with a Leupold VX 3 4.5x14x40mm. I have my rifle shooting 1/2 MOA. I am using this rifle to hunt mule deer out to about 600/700 yards. I contacted Leupold and spoke with them about there BDC similiar to the one on The Best Of the West. The individual informed me that he really like the BDC, because it took the guessing out of it. I understand that this BDC dial is particular to the information that you have to provide. Would it be better just to stay with MOA dial? Does this give me more flexibilty? My conditions are usually 7000 ft. at 35 degrees however I could possibly hunt somewere that is 4000 ft. and 50 degrees. I am struggling with this and just wanted to get your guys opiniions. Also how do you guys figure your MOA out in the field? I have some data printed off and was just plaining on sticking it in my hunting pack. Thanks for all you help!