Bow Setup and Arrow Selection for Alaska Big Game
For Alaska big game, build a setup that meets the legal minimums with a comfortable margin, uses correctly spined arrows with a durable, sharp broadhead, and that you can tune and shoot accurately under hunting conditions. Penetration on large animals like moose depends on the whole system: draw weight, arrow weight and construction, broadhead design and, above all, shot placement. Alaska regulations set minimum draw weights and arrow and broadhead standards, which can differ by species. Check the current rules before you build your setup.
Start with the legal minimums
Alaska's hunting regulations include equipment standards for archery. Historically they have set a lower minimum peak draw weight for species such as black bear, deer and caribou and a higher minimum for moose, brown/grizzly bear, elk, muskox and bison, along with minimum arrow length and total arrow weight and requirements for broadheads. Treat those numbers as a floor, not a target. A setup that barely meets the minimum leaves little margin for a slightly marginal hit on a thick-hided animal. See bowhunting basics for more on Alaska's rules.
Draw weight: enough, and controllable
More draw weight means more stored energy, but only if you can draw smoothly and hold steady in hunting conditions. A good rule: you should be able to draw your bow slowly, while sitting or kneeling, in cold-weather clothing, after sitting still for an hour. If you cannot, your accuracy will suffer more than your penetration gains.
Understanding arrows
Spine
Spine is how stiff an arrow shaft is. It must match your bow's draw weight, your draw length, your arrow length and your point weight. Under-spined arrows flex too much and fly erratically; over-spined arrows can also tune poorly. Manufacturers publish spine charts; a pro shop can help you choose.
Arrow weight and GPI
Total arrow weight includes the shaft (measured in grains per inch, or GPI), insert, nock, fletching and broadhead. Heavier arrows are slower and drop more over distance, but they carry more momentum, are quieter, and tend to penetrate better, especially through bone and thick hide.
Front of center (FOC)
FOC describes how much of the arrow's weight is toward the point. A moderately higher FOC can improve broadhead flight and stability. Many hunters use heavier inserts or broadheads to increase it. Extremely high FOC setups require careful tuning.
Kinetic energy and momentum
You can calculate both from your arrow weight in grains and its measured speed in feet per second, using a chronograph:
Kinetic energy (ft-lb) = arrow weight (gr) × speed² ÷ 450,240
Momentum (slug-ft/s) = arrow weight (gr) × speed ÷ 225,400
For example, a 450-grain arrow at 280 feet per second carries about 78 ft-lb of kinetic energy and about 0.56 slug-ft/s of momentum. Industry charts commonly suggest more energy for larger animals, often grouping elk and black bear in a "large game" category and very large or dangerous game higher still. These are rough guides only. Many experienced hunters argue that momentum and arrow durability matter more than raw energy for penetration on big animals.
Species considerations
| Species | Setup considerations |
|---|---|
| Moose | Very large body and heavy ribs; vitals sit low and behind the front leg. Favor a heavier, durable arrow and a tough broadhead. Shots are often close in brush. |
| Caribou | Smaller than moose but often hunted in open terrain, where long shots are tempting. Practice longer distances, but know your limit and account for wind. |
| Black bear | Thick fur and fat can plug wounds and leave sparse blood trails. A low exit hole and a sharp, wide-cutting broadhead help. Vitals are farther forward than many expect. |
| Brown/grizzly bear | Specialized and potentially dangerous. Not a beginner archery hunt; nonresidents must hunt with a guide or qualifying relative. Plan backup with your guide. |
| Dall sheep and mountain goat | Steep terrain and long stalks. Practice steep uphill and downhill shots; consider weight and durability for alpine travel. |
Broadheads
- Fixed-blade heads are strong and reliable, and cut-on-contact designs are favored by many for heavy animals and potential bone contact.
- Mechanical (expandable) heads fly more like field points but use energy to open. Confirm whether they are legal for your hunt and suitable for the species.
- Sharpness is critical. Practice with dedicated heads and hunt with fresh, razor-sharp ones.
- Spin-test each broadhead on its arrow for wobble.
- Match broadhead weight to your field points so your sight marks stay close.
Tuning: make broadheads fly like field points
- Check the basics: correct draw length, cam timing, centershot and nocking point, ideally set by a technician.
- Paper tune at a few feet to see whether the arrow leaves the bow cleanly.
- Bare-shaft or walk-back tune to fine-tune rest position.
- Broadhead tune: shoot field points and broadheads at 20 to 40 yards. If broadheads group separately, adjust the rest in small steps until they hit together.
- Re-check after any change: new string, new rest, new arrow or new broadhead.
Sights and range
Sight in at known distances, typically in 10-yard steps, and confirm with broadheads. Single-pin adjustable sights work well for deliberate shots; multi-pin sights are quicker when animals are moving. Either way, determine your maximum effective range: the distance at which you can reliably hit a vital-sized target under hunting conditions, on the first shot. Our shot placement guide explains how to test it.
Field-ready checklist
- Bow inspected; string waxed; all screws tight (use thread locker where recommended)
- Arrows inspected, matched and numbered; damaged arrows retired
- Broadheads sharp, spin-tested and sighted in
- Equipment confirmed against current Alaska standards for your species
- Spare release, Allen wrenches and a small repair kit packed