How Far Should You Sight In a Crossbow?

The Short Version

• Sight in your primary mark at 20 yards. The top crosshair or top aiming dot on almost every crossbow optic is engineered to serve as your 20-yard baseline.
• Take your first verification shot at 10 yards. Starting at close range guarantees your arrow hits the target block, preventing lost or shattered carbon bolts before your optic is dialed in.
• Calibrate longer distances in 10-yard steps. Once your 20-yard zero is locked, step back to 30, 40, and 50 yards to line up your secondary reticle marks.
• Match your scope to your arrow speed. If your optic features an arrow speed dial, adjust that ring rather than the elevation turret to align your downrange yardage marks.

Why 20 Yards Is the Standard Crossbow Zero

Setting your baseline zero at 20 yards gives you the most forgiving flight path possible with modern archery gear. Zeroing means adjusting your sight dials so the arrow hits precisely where you place your aiming dot. At 20 yards, a standard crossbow bolt (a short, rigid crossbow arrow) flies along a very flat trajectory. It rises slightly out of the flight rail and begins to level off right around that distance.

Because the arrow travels so fast over the first 20 yards, its path barely deviates from your line of sight. If you take a shot at an animal or target at 10 yards using that top dot, the bolt will typically strike less than an inch high. If your target stands at 22 yards, the bolt lands less than an inch low. That flat flight gives you an automatic kill zone from point-blank range out past 20 yards without forcing you to calculate holdover in the heat of the moment.

Zeroing at 30 yards instead creates frustrating problems on close shots. If you set your main crosshair to 30 yards, the bolt must arch higher into the air to cover that distance. That arching path causes the bolt to hit several inches higher than your aim point at 10 or 15 yards. Starting at 20 yards keeps your close-range shots predictable, safe, and intuitive.

Most crossbow optic makers also build their reticles (the aiming dots or wire crosshairs inside the scope) around this 20-yard standard. The spacing between the horizontal drop lines assumes the first line is anchored at exactly 20 yards. If you change that base number, every single drop marker underneath it will be thrown out of calibration.

Step-by-Step Zeroing Process from 10 to 20 Yards

Zeroing your crossbow sight does not require boxes of arrows or hours of frustration. Following a steady, step-by-step approach protects your equipment and gets you on target in just a few shots. Always decock your bow safely and keep your fingers clear of the string path whenever you handle the optic.

1. Set up a rock-solid shooting rest.

   Never attempt to sight in a crossbow while standing or shooting freehand. Any slight tremor in your hands will throw your arrows off target and disguise what the sight is actually doing. Sit at a sturdy shooting bench and support both the front forearm and the rear stock of the crossbow with shooting bags or a shooting vise. Make sure the limbs have plenty of clear space to expand sideways without slapping your rest or the bench edges.

2. Take your initial alignment shot at 10 yards.

   Before stepping out to 20 yards, place a large foam target block at 10 yards. Aim the top dot or top crosshair directly at the center bullseye and squeeze the trigger smoothly. Taking this close-range shot ensures that your bolt lands somewhere on the target face. If your optic came from the factory severely out of alignment, a 20-yard first shot could sail completely over the backstop and disappear into the dirt.

3. Adjust your windage and elevation click dials.

   Look at where your 10-yard arrow landed relative to your aiming point. Remove the protective turret caps from your optic to access the adjustment click dials. The elevation dial on top controls up-and-down movement, while the windage dial on the side controls left-to-right movement. Most dials feature an arrow pointing toward "UP" or "R" (Right). If your bolt landed two inches low and two inches to the left, turn the elevation dial toward "UP" and the windage dial toward "R" to move the impact toward the bullseye.

4. Move back to 20 yards for the primary zero.

   Once your arrow strikes the center ring at 10 yards, move your target back to a measured 20 yards. Use a reliable rangefinder or a tape measure rather than pacing out the distance with your feet. Aim your top crosshair at a fresh bullseye and fire a single bolt. Check the impact, make the necessary clicks on your dials, and fire a second bolt to verify the correction.

5. Confirm with separate aiming points.

   To avoid "Robin Hooding" and destroying your arrows, never shoot two bolts at the exact same small dot on your target. Pick a multi-bullseye target face so each shot has its own distinct ring. Fire two or three individual arrows at separate dots using the top reticle line. If every bolt strikes dead center, your 20-yard baseline is officially locked in.

Calibrating 30, 40, and 50-Yard Marks

Once your top mark is dialed at 20 yards, you can calibrate the rest of your scope for longer shots. Most crossbow scopes feature a multi-reticle layout with multiple crosshairs, chevrons, or illuminated dots stacked vertically. These secondary marks are designed to correspond to 30, 40, and 50 yards as the arrow drops over distance. To learn more about proper sight alignment and shooting mechanics, you can review how to use a bow sight with better accuracy.

Many modern crossbow scopes include a speed dial ring on the magnification collar, marked from around 300 to 450 feet per second. This ring adjusts the internal magnification of the scope. Changing the magnification changes the visual spacing between the aiming marks without moving your primary 20-yard zero point. That allows you to match the reticle spacing perfectly to how fast your specific bow shoots.

To set the speed dial, move your target out to 30 or 40 yards. Sit back at your shooting rest, look through the scope, and place the second aiming mark (the 30-yard mark) on the bullseye. Fire an arrow and check where it hits. If the arrow impacts high, your reticle marks are spaced too widely, meaning you need to turn the speed ring toward a higher speed rating. If the bolt impacts low, turn the speed ring to a lower speed number to widen the spacing.

Do not touch the top elevation dial when adjusting for downrange drop. Turning the elevation turret changes your 20-yard zero, which throws off every other distance. Only turn the speed ring to bring your 30, 40, and 50-yard impacts into alignment. If your optic is a simple red dot sight with only one central dot and no speed ring, you will need to learn your holdover: the amount of space you must aim above the target to hit at 30 or 35 yards.

Adjusting for Bolt Speed and Weight

Arrow flight depends directly on bolt weight and launch velocity. Crossbow manufacturers usually print an arrow speed on the box, such as 400 feet per second. That factory rating is almost always measured with the lightest possible bolt safe to fire. When you hunt, you typically shoot a heavier bolt fitted with a steel broadhead, which travels slower than the speed printed on the bow limb.

Weight directly influences how quickly gravity pulls the bolt down. A light 370-grain arrow flies faster and maintains a flatter path between 20 and 40 yards. A heavier 450-grain arrow carries more momentum and penetrates deeper, but it drops much faster past 25 yards. Because the heavy arrow drops at a steeper angle, your downrange reticle marks need wider physical spacing to hit accurately at 40 and 50 yards.

The type of tip you screw into your bolt also changes flight characteristics. Field points (bullet-shaped metal tips used for target practice) offer clean aerodynamics and slip through the air smoothly. Broadheads feature cutting blades that act like tiny wings in flight. If your broadheads encounter wind resistance, they can hit lower or slightly to the side compared to field points. Always verify your sight settings with practice broadheads before heading out for the season, especially if you plan on using bow sights for treestand hunting where steep shot angles also affect drop.

Common Sighting Mistakes That Ruin Groups

When arrows land unpredictably across the target face, shooters often blame the optic dials. In most cases, the problem comes from subtle errors in setup, shooting posture, or equipment care. Keeping a clean routine prevents these frustrating mistakes.

• Resting the bow limbs on the shooting bench: The limbs of a crossbow flex and snap forward with incredible energy. If any part of the limb touches a sandbag, bench corner, or rest post, the limb bounces off that hard surface upon firing, sending the arrow wildly off course. Always ensure the limbs have several inches of free clearance.
• Canting the crossbow sideways: Canting means tilting the bow slightly to the left or right instead of holding the limbs completely level with the ground. Tilting the bow even a few degrees causes the arrow to hit low and in the direction of the tilt at 30 or 40 yards. Look for a small bubble level on your scope rail to keep your bow level on every shot.
• Inconsistent cheek placement on the stock: Pressing your cheek firmly against the stock on one shot and resting lightly on the next changes your eye angle through the scope window. This parallax error makes the aiming dot appear to shift on the target. Place your cheek in the exact same spot for every single trigger squeeze.
• Loose optic mounting screws: Crossbows produce sharp, unique vibrations when fired. That violent forward recoil can loosen scope rings over time. Check your mounting screws with an inch-pound torque tool and secure the threads with a drop of thread-locking fluid so your sight base never shifts between shots.

Using an Arrow-Threaded Laser Bore Sight to Save Bolts

One of the easiest ways to simplify your initial setup is using an arrow-threaded laser bore sight. A bore sight is a small sighting tool that projects a straight laser beam from your bow to the target. In archery setups, these tools either screw directly into the threaded insert of your standard carbon bolt or rest directly in the flight track where your arrow sits.

Before you ever cock your crossbow or fire a live round, you switch on the laser and look through the optic at a wall or target 15 to 20 yards away. The laser shows you where your arrow path points. You simply adjust your elevation and windage dials until your top crosshair sits directly on top of the visible red or green laser dot. This centers your reticle before you take your very first shot, virtually guaranteeing that your first live bolt will hit the target block cleanly.

When shopping for a bore sight tool for your crossbow, look for a durable housing machined from brass or aluminum alloy so it holds up to repeated use in your gear bag. Verify that the threads match standard archery arrow inserts, or that the casing profile fits cleanly into the flight groove. An accessible on/off switch or a rechargeable battery port makes the tool much easier to operate without needing to take the batteries out between adjustments. A bright red or green laser rated for daylight use will give you a clear, crisp reference point even on sunny outdoor ranges.

1

Tipfun Crossbow Bore Sight with Red Laser Crossbow Archery Bow

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.8
• Brand
  Tipfun

Key specs2

Mounting Method

Direct bolt thread-on interface

Included Power

Batteries come included in the box, but verify the exact replacement battery code before ordering spare sets.

Pros & cons33

Pros

• Direct thread-on design attaches straight to crossbow bolts for zeroing alignment
• Includes batteries in the package so setup can begin immediately
• Red laser diode gives a clear visual reference point against a target face

Cons

• Manufacturer does not publish laser power output or wavelength ratings
• Battery runtime and specific battery model size are omitted from specifications
• Lacks a dedicated external power switch for quick shutoff

2

MidTen Crossbow Laser Bore Sight with On/Off Switch Red Laser

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.6
• Brand
  MidTen

Key specs3

Power Control

The back cap rotates gently toward the marked OFF arrow to cut power, eliminating the need to take batteries out between sighting steps.

Laser Specifications

• Output: Class IIIA under 5mW
• Visibility distance: 15 to 100 yards in low light
• Included cells: 6 CR41 button batteries

Manufacturer Warranty

1 year manufacturer coverage

Pros & cons43

Pros

• Built-in on and off cap rotation prevents frequent battery removal between adjustments
• Supplied with six CR41 batteries delivering up to 1.5 hours of runtime per set
• Class IIIA red laser reaches 15 to 100 yards in low-light conditions to prevent arrow loss
• Factory pre-adjusted alignment helps center optics before shooting live arrows

Cons

• Red laser visibility drops significantly in direct mid-day sunlight at longer ranges
• Runtime is limited to roughly 1.5 hours per three-battery set
• Requires gentle cap turning to switch off without fully unthreading the housing

3

MidTen Crossbow Red Laser Bore Sight Crossbow Bow Archery Arrow

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.2
• Brand
  MidTen

Key specs2

Mounting Method

Thread-on arrow insert design

Power Setup

Two complete sets of button cell batteries come in the package, though the listing leaves specific cell codes unstated.

Pros & cons33

Pros

• Threads directly onto standard arrow inserts for concentric crossbow alignment
• Includes two full sets of batteries for extended zeroing sessions
• Projects a visible red laser to get on target paper without firing shots

Cons

• Does not feature an independent rotary on and off switch
• Manufacturer omits specific laser classification and output wattage
• Requires battery removal or cap loosening to prevent parasitic drain during storage

4

Crossbow Laser boresighter Red Laser Bore Sight w/ 6 Batteries

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.2
• Brand
  TPO

Key specs2

Laser Specifications

• Class IIIA red diode under 5mW
• Wavelength rating: 625 to 650nm
• Sighting distance: 15 to 100 yards (5 to 100m)

Housing Material

Built from lightweight aluminum with an overall item weight of 0.0625 pounds, keeping forward bolt weight minimal during setup.

Pros & cons43

Pros

• Sturdy lightweight aluminum body weighs just 0.0625 pounds
• Class IIIA red laser operates between 625 and 650nm for distinct reticle alignment
• Packaged with six AG3 button batteries to provide two complete battery changes
• Sighting range spans from 15 to 100 yards for close and mid-range bore alignment

Cons

• AG3 button cells must be removed to guarantee complete shutoff during storage
• Warranty coverage is limited to a 30-day money-back guarantee window
• Red beam can be difficult to track past 20 yards in open outdoor daylight

5

GOTICAL Archery Crossbow Bow Arrow Red Laser Sighting Tool Boresighter

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  8.2
• Brand
  Gotical

Key specs2

Physical Footprint

0.79 x 0.79 x 0.79 inches

Power Supply Requirement

Sold as the bare laser tool without included cells. Verify matching battery size requirements before initial alignment.

Pros & cons33

Pros

• Ultra-compact aluminum housing measures under 0.8 inches in all dimensions
• Class IIIA red laser operates under 5mW for controlled alignment visibility
• Precision aluminum structure resists flex when threaded to arrow hardware

Cons

• Shipped as laser unit only, requiring buyers to source matching batteries separately
• Double-ended cap design requires manual disassembly to cut battery power
• Manufacturer does not list maximum effective yardage or laser wavelength

6

GRG Archery Laser Sight Tool for Bow and Crossbow, 223

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• ARS Mark

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  8.0
• Brand
  GRG MFG

Key specs2

Shell Construction

Machined brass body (0.01875 lb)

Optical Beam Profile

Class IIIA red emitter centered at 635nm wavelength with power output below 5mW for crisp reticle alignment.

Pros & cons33

Pros

• Solid brass construction provides rigid casing and natural corrosion resistance
• Extremely light weight of 0.01875 pounds exerts negligible drag on bolt alignment
• 635nm red laser wavelength delivers strong target contrast under 5mW Class IIIA limits

Cons

• Brass cartridge shape requires compatible arrow shaft adapter or holder for crossbow use
• Battery type and operating runtime are omitted from manufacturer specifications
• Lacks an integrated on and off switch, relying on battery cap loosening

7

Gotical USB Rechargeable Archery Laser Sight Tool for Bow and

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• ARS Mark

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  7.8
• Brand
  Gotical

Key specs2

Charging and Runtime

• Charge time: 2.5 hours via USB connection
• Runtime: up to 3.5 to 4 hours continuous use
• Battery type: internal rechargeable cell

Alignment Yardage

15 to 100 yards in low light

Pros & cons43

Pros

• USB rechargeable design completely eliminates buying and replacing disposable button cells
• Fast 2.5-hour recharge delivers up to 3.5 to 4 hours of continuous alignment runtime
• Heavy-duty brass housing provides stable alignment when threaded to bolt ends
• Reaches 15 to 100 yards in low light to establish a safe initial zero on paper

Cons

• Lacks an external switch, requiring users to twist the unit open to turn off the beam
• Listing features conflicting beam color claims between green diode and red beam descriptions
• Rechargeable internal cell cannot be hot-swapped in the field once depleted

8

GOTICAL Arrow Laser Sight Tactical Archery Bore Sight Red Dot

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• ARS Mark

  ARS Mark is a ranking system developed by bestairriflescopes.com. ARS Mark has no relationship or impact from any manufacturers or sales agent websites. Learn more

  7.6
• Brand
  Gotical

Key specs3

Housing Material

CNC aluminum alloy

Dot Projection Profile

Produces a 2-inch red dot diameter at 100 yards from a 4mW diode (632-650nm), establishing precise reticle reference points.

Safe Operation Warning

Mounts to the end of the bolt for sight alignment only; verify the tool is fully removed before cocking or firing.

Pros & cons43

Pros

• Mounts directly to arrow tip to project true line-of-bore alignment before firing
• Sturdy aluminum alloy casing ensures long service life during pre-hunt adjustments
• Features a tight 2-inch dot size at 100 yards using a 4mW Class IIIA red beam
• Rated for sighting distances from 15 out to 100 yards on archery ranges

Cons

• Must be completely removed from arrow shaft before releasing a live shot
• Battery specifications and operating runtime are not stated by the manufacturer
• Does not include an independent power push button

Last update on 2026-10-01 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

FAQs

Can I sight in my crossbow at 30 yards instead of 20?

You can sight your top mark at 30 yards, but it is not recommended for standard crossbow hunting optics. Modern multi-reticle scopes are manufactured with fixed spacing calibrated from a 20-yard base. If you set the top crosshair to 30 yards, close-range shots will hit unexpectedly high, and all lower yardage lines will be out of sync.

Should I shoot broadheads when zeroing my crossbow sight?

Start your zeroing process with field points to save wear on your target block and avoid dulling your expensive hunting blades. Once your 20-yard zero and speed ring are dialed in, screw on your broadheads or practice blades to verify impact. Broadheads often fly with slightly more drag, so you may need a click or two of elevation adjustment before hunting.

What should I do if my arrows shoot to the right as I move back in distance?

If your arrows hit center at 20 yards but wander to the right at 40 yards, you likely have a slight windage misalignment or you are canting the bow. Make a tiny left adjustment on your windage dial, or check that your crossbow limbs are held perfectly level when pulling the trigger. Even a minor tilt causes downrange arrows to drift toward the low limb.

How often should I verify my crossbow sight alignment?

Check your sight alignment at the start of every hunting season, after traveling in a vehicle, or if the bow suffered a bump against a tree stand. Firing two verification arrows at 20 yards takes only a few minutes and confirms that your mounting screws stayed tight and your dials remained locked in place.