Boone & Crockett system
Deer Scoring
Work down the rack one measurement at a time and watch the number move. Typical and non-typical are both calculated on every rack, the symmetry deductions are shown line by line, and the whole thing runs in the browser — no account, no signal needed once the page has loaded.
Reference
How the measurements are taken
The tape
A quarter-inch flexible steel tape, measured to the nearest one-eighth of an inch. Every length follows the outer curve of the antler, not a straight line between two points. A cable or a string works for the curves if the tape won't lie down.
Main beam (F)
From the lowest outside edge of the burr, over the outer curve, to the tip of the beam. The beam tip counts as a point but is never measured as one.
Points (G1–G7)
Numbered from the base out. G1 is the brow tine. A projection is a point only if it is at least one inch long and longer than it is wide at one inch from the tip. Measure from the nearest edge of the main beam, along the outer curve, to the tip.
Circumferences (H1–H4)
H1 is the smallest circumference between the burr and G1; H2 between G1 and G2; H3 between G2 and G3; H4 between G3 and G4. If there is no brow tine, H1 and H2 are both taken at the smallest place between the burr and G2. If there is no G4, H4 is taken halfway between G3 and the beam tip.
Spread (D)
Inside spread is the widest measurement between the main beams, taken at a right angle to the centreline of the skull. It is credited up to the length of the longer main beam — a wide rack on short beams gets no extra credit for the width.
Abnormal points (E)
Anything that isn't a normal point off the top of the main beam: kickers off the burr, stickers, drop tines, points growing off other points. On a typical score they are deducted. On a non-typical score they are added — which is why a heavily stickered rack should be scored non-typical.
Green vs. official
A green score is taken any time. An official score requires 60 days of air drying at habitual room temperature and an official measurer. Antlers shrink as they dry, so a green score almost always comes in a little above the official one.
This tool follows the published Boone & Crockett measuring system for whitetail deer, which Pope & Young also uses. It is not affiliated with either club, and a score produced here is not an official one.