I am a student of long range hunting beyond 300 yards, armed with Quality Assurance skills, which suggest that for long distance it is essential to reduce variation as much as humanly possible. How I achieve that is:
1. By choosing a flat shooting cartridge/bullet/powder that maintains its energy with superior bullet construction and superior ballistic coefficient.
2. By choosing a scope that is up to the task at hand, whether it is short range or long range. Enter the Leupold Gold Ring VX-6 2x12 42mm scope with Boone and Crockett reticle and a full lifetime warranty. It maintains superior brightness, clarity and contrast, while at the same time being absolutely waterproof and fog proof. Leupold's dual spring erector system is as rugged as it gets when shooting a rifle that can rattle teeth if not held correctly. After shooting Leupolds on many powerful rifles, I have become accustomed to the generous eye relief and the rubber bumper at the eye end. All it takes is one crescent cut from a scope ring that was too close to your eye and forehead e.g., to have that need for eye relief etched into your brain, like I once did. You'd have thought I was bleeding to death. I am much older and the scar is nearly invisible.
No scars from my Leupold scopes, I am happy to say! And the new Leupold VX-6 scope has the capability of matching the ballistics of a number of calibers that make the use of many fast and faster calibers to match the long range crosshairs beyond 300 yards and out to say 600 yards. It knows by your magnification selection diamond, bullet and speed of similar calibers, where it will cross the Boone and Crockett duplex crosshairs. The shooter needs to experiment and practice to be exact.
3. By choosing a laser rangefinder such as the Leupold RX-1000i TBR (True Ballistic Rangefinder) with DNA (Digitally eNhanced Accuracy), you can determine the True Ballistic Range and it automatically calculates the correct distance no matter what the angle is. It will range from 5 yards to 1000 yards and has a bright Orange LED Display you can see at dawn or dusk for when that big bruiser buck steps out into the field.
4. By choosing excellent binoculars. A good pair of binoculars is essential. I use the very compact Leupold Rogue 10x25mm waterproof binoculars, utilizing a center focus Porro prism. Weighing in at 12.7 oz., they are not at all bulky to carry.