Are micro-diameter arrows better for hunting?

Micro-diameter arrows (4mm, 4.2mm, 5mm) have less wind drag and cut a smaller entry hole through hide, which can improve penetration on angled shots. They are not universally better — standard 6mm shafts are more durable, easier to find, and available in a wider variety of spine ratings. Micro-diameter arrows are most beneficial for hunters shooting longer distances (40+ yards) in wind, or those chasing maximum penetration on larger game. For close-range whitetail hunting under 40 yards, the practical difference is small.

How heavy should my hunting arrow be?

Arrow weight for hunting is measured in grains per pound (GPP) of draw weight. The ATA safety minimum is 5.0 GPP. For hunting deer, 6–8 GPP (total 400–500 grains on a 65 lb bow) is the standard range. For elk and larger game, 7–10 GPP (450–600+ grains) is recommended. Heavier arrows carry more momentum and penetrate better through heavy bone — lighter arrows fly faster with a flatter trajectory but sacrifice penetration. The right weight depends on your max hunting distance, species, and broadhead choice.

Does arrow diameter affect hunting performance?

Arrow diameter affects drag in flight and the size of the entry wound. A smaller diameter arrow experiences less wind deflection and creates a narrower entry hole that can slide between rib bones more easily on marginal shots. However, smaller diameter also means less shaft contact with tissue, which can reduce blood trail visibility. For most hunting situations under 40 yards, the practical impact of diameter on performance is minor compared to broadhead choice and shot placement.

Best hunting arrows

Q: What is the best arrow for deer hunting?

For whitetail and mule deer, the best hunting arrow weighs 400–500 grains total, has a standard (6mm/0.244") or micro (4–5mm) diameter carbon shaft, and is matched to your draw weight via a spine chart. A 100–125 grain broadhead with a brass or stainless insert producing 10–15% FOC is the most versatile starting setup. The selector tool on this page gives a personalised recommendation based on your specific draw weight, draw length, and target species.

Q: What is the best arrow for elk hunting?

Elk hunting demands a heavier arrow than deer — 450–600 grains total is the widely accepted range. A 5mm or 6mm diameter carbon shaft with a brass or stainless insert pushing FOC to 13–19% gives the penetration needed for a large-bodied animal. Minimum 50 ft-lbs kinetic energy and 0.040+ slug·ft/s momentum are the performance floors for ethical elk kills. A 100–125 grain cut-on-contact fixed blade broadhead is the most consistent performer on elk. The arrow selector above generates a personalised recommendation for your draw weight and length.

The right hunting arrow depends on your species, draw weight, and draw length — not brand loyalty. Use the selector below to get a personalised shaft recommendation, then verify your full build in the arrow build calculator.

Part of the Archery Calculators toolkit. This page covers arrow selection by hunting scenario. For the complete build — FOC, total weight, KE, momentum, and spine flag all at once — use the Arrow Build Calculator.

Hunting arrow selector

Enter your setup and target species. The selector returns a shaft profile — diameter, total weight range, and spine starting point — matched to the performance requirements of your hunt. All inputs update the result live.

Target species Drives minimum weight and penetration requirements. Draw weight at your draw length (lb) Actual draw weight at your draw length — not peak IBO weight. Use the Draw Weight Calculator if unsure. Draw length (inches) Affects arrow cut length and therefore shaft weight. Use the Draw Length Calculator if unsure. Max hunting distance (yards) The furthest shot you'd take in the field. Affects diameter and weight recommendations. Hunting style

Result updates as you fill in each field.

Hunting arrow requirements by species

These are the evidence-based performance floors used by the selector above. Every number here represents the minimum for an ethical, clean kill — not a marketing suggestion. Your actual build should meet or exceed the figures for your target species.

Species	Total weight	Min. KE	Min. momentum	FOC target
Turkey / small game	350–450 gr	25 ft-lbs	0.030 slug·ft/s	10–14%
Pronghorn antelope	380–470 gr	35 ft-lbs	0.034 slug·ft/s	10–14%
Whitetail deer	400–500 gr	40 ft-lbs	0.037 slug·ft/s	10–15%
Mule deer	420–520 gr	42 ft-lbs	0.038 slug·ft/s	11–16%
Wild hog	450–550 gr	45 ft-lbs	0.040 slug·ft/s	12–17%
Black bear	460–580 gr	50 ft-lbs	0.042 slug·ft/s	13–18%
Elk	450–600 gr	50 ft-lbs	0.044 slug·ft/s	13–19%
Moose / large game	500–700 gr	65 ft-lbs	0.050 slug·ft/s	15–20%+

KE and momentum figures are at-target minimums for your max hunting distance. Verify your setup using the KE Calculator and Momentum Calculator.

Arrow diameter — what actually changes in the field

Diameter is one of the most debated variables in hunting arrow selection, and one of the most misunderstood. Here is what the difference actually amounts to in real hunting scenarios.

Standard diameter (6mm / 0.244")

The most widely available hunting shaft size. Greater shaft wall thickness means better durability on pass-throughs and rocky terrain. Easier to source, more spine options, generally lower cost. The practical choice for most whitetail and close-range hunting under 40 yards. Slightly more wind drift at distance than micro shafts of equal weight.

Mid-diameter (5mm / 0.204")

A genuine middle ground — less wind drag than standard, more shaft strength than 4mm. Available from most major brands. A strong all-round choice for deer hunters shooting 30–50 yards or those hunting mule deer and antelope where wind is a factor. No meaningful trade-off versus standard diameter at typical hunting distances.

Micro-diameter (4mm / 0.166")

Lowest drag, smallest entry wound, maximum slide-through on tough shots. Most meaningful benefit is on angled shots through heavy muscle or where rib clearance matters. The difference versus 5mm is noticeable at 50+ yards in wind. Thinner shaft wall means slightly more fragile on contact with bone. Best for elk, moose, and long-range applications.

The honest summary

Under 40 yards on a broadside whitetail, shaft diameter is not a meaningful performance variable. Shot placement and a sharp broadhead matter far more. Diameter becomes genuinely relevant at longer distances in wind, on quartering shots through heavy muscle, and on larger game where penetration depth is the performance ceiling.

How to choose your hunting arrow — the decision sequence

Most confusion about hunting arrows comes from trying to choose a brand before choosing a profile. Follow this sequence to narrow from the full market to the right two or three shafts to compare.

Fix your species and max distance first These two variables determine your minimum total arrow weight and minimum kinetic energy. Everything else flows from them. A whitetail hunter at 30 yards and an elk hunter at 50 yards need fundamentally different arrows — not just different broadheads on the same shaft. Use the selector above or the species table to find your performance floor before you look at a single brand.

Choose diameter based on your max distance and game size Under 40 yards on deer-sized game: standard 6mm or 5mm — either works. 40–60 yards or mule deer / antelope in wind: 5mm is a meaningful upgrade. 50+ yards or elk / bear: 4–5mm micro. Do not let brand marketing drive this — the physics of diameter choice are straightforward once you know your scenario.

Determine your spine starting point Use the Arrow Spine Calculator with your actual draw weight and draw length to get a spine starting point. The selector on this page also gives a starting spine. Note: this is a starting point — heavy inserts (30+ grains) or long arrows require a stiffer spine than the chart suggests. Paper or bare-shaft tune to confirm.

Build to hit your target weight — starting with the insert Once you have a shaft and point weight in mind, the insert is your primary tuning lever for total weight and FOC simultaneously. A 50-grain brass insert raises FOC by 2–4 percentage points compared to a 15-grain aluminium insert at the same point weight, without meaningfully affecting arrow speed. Use the Arrow Build Calculator to model the full build before ordering.

Verify KE and momentum at your max distance — not at the bow Kinetic energy and momentum decay with distance. An arrow that clears the elk hunting minimum at 10 yards may fall short at 60. The Arrow Trajectory Calculator shows speed and energy at distance. Verify your setup hits the species minimum at your stated max hunting distance, not at the muzzle.

Now match your broadhead to the shaft — not the other way around Once your shaft profile is set, choose a broadhead that matches it. Fixed blade broadheads require tighter tuning but deliver better penetration on angled shots and heavy bone. Mechanical broadheads are more forgiving of marginal tuning and produce larger wound channels on broadside shots. The Broadhead Chart compares the most common hunting heads by cutting diameter, weight, and deployment style.

Speed vs. penetration — what the trade-off actually looks like

The most common arrow-building mistake among hunting beginners is optimising for speed at the expense of penetration. Here is what the trade-off looks like in real numbers, and why it matters for specific hunting scenarios.

Setup	Arrow weight	Speed (fps)	KE (ft-lbs)	Momentum	Best for
Speed build	350 gr	~315	~77	~0.034	Target, turkey at close range
Balanced deer	450 gr	~285	~81	~0.040	Whitetail, mule deer, antelope
Heavy deer / light elk	520 gr	~265	~81	~0.044	Black bear, hog, early-season elk
Full elk build	600 gr	~248	~82	~0.050	Elk, moose, large game

Figures based on a 65 lb compound bow at 28" draw. Note that KE stays broadly similar across a wide weight range — the meaningful difference between these builds is momentum, which determines continued penetration through tissue and bone. Run your actual numbers in the KE and Momentum calculators.

Where to buy hunting arrows

These are the shaft categories the selector draws from. Match the link to the diameter recommendation from your result above.

Carbon hunting arrows — Optics Planet — largest selection of hunting shafts across all diameters and spine ratings. Strong for comparing Easton, Gold Tip, Carbon Express, and Black Eagle side by side before ordering.
Crossbow bolts — Ravin Crossbows — proprietary bolts engineered for Ravin crossbows; if you're shooting a Ravin, these are the arrows the warranty requires.
Carbon arrows — Amazon — widest selection for specialty shafts, micro-diameter options, and bulk purchases. Best for ordering a specific model once you know your spine and diameter from the selector above.
Heavy brass inserts — the most efficient way to increase FOC and hit your target weight without changing shaft or point. A 50-grain brass insert is a meaningful upgrade on any hunting build targeting 12%+ FOC.
Field points (for practice build verification) — always verify your complete build with field points before switching to broadheads. Match field point weight to your broadhead weight exactly — most hunting broadheads are 100 or 125 grains.
Grain scale — weigh every component individually. Catalogue weights are nominal; actual component weights vary by 2–8 grains per piece. For a precise FOC calculation, you need measured weights, not specifications.

Why species and distance should drive arrow choice — not brand

Most hunting arrow advice is written from a brand-first perspective — "here are the top five shafts on the market this year." The problem is that the top five shafts on the market may not include the right shaft for your specific draw weight, draw length, and target species. A hunter shooting 55 lbs at 26.5 inches needs a completely different spine profile than one shooting 70 lbs at 30 inches, and the "best" shaft for one will paper-tune poorly for the other.

The performance minimums in the table above — KE, momentum, and FOC by species — are not marketing figures. They represent the point below which ethical kills become inconsistent. A 350-grain arrow at 310 fps produces impressive speed numbers but carries the same kinetic energy as a 500-grain arrow at 260 fps. The difference is momentum: the heavier arrow continues through heavy bone and muscle more reliably, which matters when shots are not perfect.

The selector and decision sequence on this page are designed to get you to the right shaft profile before you look at brands, not after. Once you have a spine, diameter, and weight target, comparing two or three specific shafts becomes a straightforward exercise in durability, straightness tolerance, and price — not a research project.

Hunting arrows — frequently asked questions

What is the best arrow for deer hunting?

For whitetail and mule deer, a 400–500 grain total arrow weight with 10–15% FOC and at least 40 ft-lbs kinetic energy at your max hunting distance is the starting framework. A 5mm or 6mm carbon shaft with a 100–125 grain broadhead and a 20–50 grain brass insert produces this profile on most 55–70 lb compound setups. Use the selector above with your specific draw weight and draw length to get a personalised starting point, then verify the full build in the Arrow Build Calculator.

What is the best arrow for elk hunting?

Elk hunting requires more arrow than most whitetail setups deliver. A 450–600 grain total weight, 13–19% FOC, and at least 50 ft-lbs KE and 0.044 slug·ft/s momentum at your max shooting distance are the minimums. A 4–5mm micro-diameter shaft with a 50–75 grain brass insert and a 100–125 grain fixed-blade cut-on-contact broadhead is the most consistently recommended elk setup among serious backcountry hunters. The heavier shaft profile handles angled shots through heavy shoulder muscle far better than a speed-optimised deer build.
Hunting elk with a crossbow? The Ravin R29X shooting 400–500 grain bolts consistently meets elk KE and momentum minimums and is one of the most community-recommended crossbows for big game.

Are micro-diameter arrows worth it for hunting?

For hunting under 40 yards on broadside deer: the practical difference compared to a well-tuned standard diameter shaft is small. For hunting 40–60+ yards, or on elk, bear, and hog where angled shots through heavy muscle are common, the reduced wind drift and smaller entry profile of a 4–5mm shaft produces measurable real-world differences. The key caveat: micro-diameter arrows require more precise tuning and are more sensitive to form errors than standard shafts. They are an upgrade for an archer who is already shooting consistently — not a shortcut for one who is not.

How do I know if my current arrows are heavy enough for elk?

Run your full build through the Kinetic Energy Calculator and Momentum Calculator using your actual arrow weight and chronographed speed. Then check the result against the elk minimums: 50 ft-lbs KE and 0.044 slug·ft/s momentum at your maximum shooting distance (not at the bow). If your current setup falls short, adding a heavier brass insert is usually the most efficient adjustment — it adds total weight and raises FOC simultaneously without requiring a new shaft.

Should I use the same arrows for practice and hunting?

Ideally yes — practice arrows should match your hunting arrows in weight and spine exactly, so your sight marks and hold-over references carry directly to the field. The most practical approach is to buy hunting shafts in bulk, fletch some with practice field points and some with broadheads, and use the field-point set for all summer practice. This means your muscle memory and sight settings are calibrated to the exact arrow you will shoot at an animal. Never sight in with light practice arrows and hunt with heavier broadhead-tipped arrows — the trajectories differ enough to cause missed shots at distance.

Does arrow straightness tolerance matter for hunting?

At typical bowhunting distances (under 50 yards), the difference between a ±0.006" and ±0.001" straightness tolerance is not detectable in groups. Straightness tolerance matters more for 3D and target competition where tight groups at 60–80 yards are measured. For hunting, spending the straightness-tolerance budget on a heavier brass insert and verified spine is a better investment than premium straightness grades on the same shaft.