Estimate your mule deer buck's Boone & Crockett gross and net score. Enter main beam lengths, forked tine lengths, beam circumferences, and inside spread below.
Enter all measurements in inches (decimals OK, e.g. 22.5). Leave a tine at 0 if the point does not exist or is under 1 inch. For mule deer, G3 and G4 are the two fork tines measured from the fork point.
G1 = brow tine · G2 = main fork base (second point) · G3 = upper fork (longer fork of G2) · G4 = lower fork (shorter fork of G2)
H1 = between burr and G1 · H2 = between G1 and G2 · H3 = between G2 and G3 · H4 = between G2 and G4
| Measurement | Right | Left | Difference |
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Mule deer (Odocoileus hemionus) use the same Boone and Crockett measurement system as whitetail deer — inside spread credit, main beam lengths, tine lengths, and four circumference measurements per side — but their antler architecture is fundamentally different. A whitetail grows a single main beam with individual tines rising off it. A mule deer grows a forked rack where G2 splits into two separate forks (G3 and G4), and those forks may split again in very old bucks. This forked structure is what gives mule deer their distinctive "donkey ear" silhouette and why they are judged and admired differently than whitetails in the field.
The inside spread credit follows the same cap rule as all B&C species: spread credit equals the inside spread measurement or the length of the longer main beam, whichever is less. Mule deer with wide racks relative to their beam length will see their spread credit capped at the longer beam measurement.
The most important thing to understand when scoring mule deer is how the forked tines are measured. G1 is the brow tine, which many mule deer lack entirely — especially younger bucks. G2 is measured from the main beam up to the fork point where it splits. G3 is the upper (and usually longer) of the two fork tines, measured from the fork point to its tip. G4 is the lower (shorter) fork, also measured from the same fork point. This means G3 and G4 are not measured from the main beam — they both originate from the G2 fork junction. Misunderstanding this point is the most common scoring error made on mule deer antlers. The H4 circumference measurement is taken between the base of G3 and the base of G4 (at the fork point), not between G3 and G4 tines themselves.
Mule deer antler development is strongly tied to age, nutrition, and habitat quality. A rough guide for prime-habitat bucks:
The Boone and Crockett minimum for typical mule deer is 180 points net, and for non-typical mule deer it is 240 points net. Pope and Young (archery) minimums are 145 net typical and 175 net non-typical. The B&C Awards Program requires a higher 190 typical or 250 non-typical to be considered for an award. The all-time world record typical mule deer is the Doug Burris Jr. buck taken in Colorado in 1972, scoring 226 4/8 net — a buck that still stands as one of the most impressive trophies ever taken in North America. A mature mule deer in prime habitat averaging 150–170 gross is considered an excellent trophy by any serious mule deer hunter.
Colorado, Utah, Wyoming, Montana, and Nevada consistently produce the largest mule deer in North America. The Rocky Mountain subspecies (O. h. hemionus) tends to grow the biggest antlers. High-elevation summer range followed by lower winter range, combined with good browse quality and low hunting pressure, produces the best bucks. The breaks and coulees of eastern Montana and Wyoming also support outstanding mule deer populations. Arizona and New Mexico draw significant pressure for their trophy bucks on limited-entry tags. Many serious mule deer hunters spend years saving preference points for coveted limited-entry units in these states.
Field judging mule deer differs from whitetails because you're evaluating fork length rather than individual tine height. Look for deep forks — you want both G3 and G4 to be at least 15 inches or longer for a 170-class buck. Mass is critical; thin-beamed bucks lose significant score. A buck whose antlers appear as wide as his ears (roughly 20–22 inches) from the front has good spread. The classic "four fingers wide" mass test at H2 signals a heavy-beamed animal. Any buck with long, deep forks, good mass, and spread approaching ear-tip to ear-tip width deserves a long look.
The B&C formula is identical — both use main beams, G1–G4 tines, H1–H4 circumferences, and inside spread credit. The key difference is antler architecture. Whitetail tines grow individually off the main beam. Mule deer tines fork: G2 splits into G3 and G4 at the fork point, and both G3/G4 are measured from that junction rather than from the main beam. This makes field judging more visual (deep forks vs. tall tines) and means typical mule deer gross scores are usually lower than typical whitetail gross scores despite mule deer being a larger animal.
A 150-inch typical net score is a genuine trophy mule deer that any serious hunter would be proud of. Bucks in the 160–170 range are exceptional and represent a significant achievement. Anything above 170 inches net is near book-class, and 180+ net qualifies for Boone and Crockett typical records. In most states, the average mature buck scored by hunters runs 110–140 inches typical — so a 150-inch buck is well above average even in good mule deer country.
The Boone and Crockett minimum net score for typical mule deer is 180 points. For non-typical mule deer, the minimum is 240 points net. Pope and Young (archery) minimums are lower: 145 net for typical and 175 net for non-typical. The B&C Awards Program entry minimums are 190 for typical and 250 for non-typical — slightly higher than standard record book entry. All of these are net scores calculated after deducting side-to-side measurement differences from the gross total.
G3 and G4 are both measured starting from the fork junction point — where G2 splits into the two forks — not from the main beam. Place the end of your tape at the exact center of the fork where the two tines divide, and run the tape to the tip of each fork tine separately. G3 is typically the upper, longer fork and G4 the lower, shorter one. Use a flexible steel cable or tape that can follow the curve of each tine. This measurement method is the most commonly misunderstood aspect of mule deer scoring and directly impacts the accuracy of your gross score.
Colorado has historically produced more B&C record book typical mule deer than any other state, including the all-time world record. Utah is widely considered to have the best overall big-buck potential today, with several limited-entry units consistently producing 200-class bucks. Wyoming and Montana offer more accessible opportunities with good buck quality. Nevada, Arizona, and New Mexico have limited-entry units that produce exceptional trophy bucks with very low hunting pressure. For overall hunter success combined with trophy quality, Colorado and Utah rank at the top of most serious mule deer hunters' lists.