What Scope Magnification Do You Need for Hunting?

Ask ten hunters how much scope you need and you will hear ten answers. The honest one is that scope magnification for hunting should match the distance you actually shoot and the cover you hunt in, not the farthest shot you can imagine. Too little power makes it hard to pick out a vital zone or a branch in the way. Too much makes it hard to find the animal at all.

This guide gives you practical rules of thumb, explains the tradeoffs that come with more power, and ends with a table you can use to narrow your choice.

How to read scope magnification numbers

A scope labeled 3-9x40 has a variable magnification from 3 power to 9 power and a 40 mm objective lens. At 3x, an object looks three times closer than it does to your naked eye. A fixed scope, such as a 4x32, has one magnification only.

Two other terms come up constantly:

• Zoom ratio. A 3-9x has a 3x zoom ratio (9 divided by 3). Newer designs offer 4x, 5x, 6x or more, such as 2-10x or 3-18x, which widens the range one scope can cover.
• Focal plane. In a first focal plane scope the reticle grows and shrinks with magnification. In a second focal plane scope it stays the same size. Our guide to first vs second focal plane scopes covers that choice in detail.

Rules of thumb for scope magnification for hunting

These are starting points, not laws. They assume a hunter who has practiced at the distances in question.

• Thick timber, brush and swamps: low power, roughly 1x to 4x. Shots tend to be close and fast, and you need a wide view to find the animal.
• Mixed woods and field edges: a 2-7x, 3-9x or similar variable covers most situations. This is why the 3-9x has been a deer hunting standard for so long.
• Open fields, food plots and prairie: more top end helps, such as 4-12x, 3-15x or 4-16x, for identifying game and placing shots across longer distances.
• Mountain and western hunts with long shots: hunters who have trained for long range often choose 4-16x, 5-25x or similar, usually with turrets or a ranging reticle.
• Hogs, predators at night or close calling: low power variables or red dots for fast work, often paired with lights or night vision depending on local rules.

A simple test: think about your three most likely shots in your actual hunting spot. Pick a scope whose low end works for the closest one and whose high end comfortably covers the farthest.

Typical shot distances by hunt type

Shot distances vary by region, terrain and the individual hunter, but some patterns are well known. Use this table as a general guide, not a rule.

Notice how often the low end matters as much as the top end. In the woods, a scope you can turn down to 2x or 3x is far more useful than one that reaches 20x.

Field of view: the hidden cost of more power

Field of view is how wide an area you see through the scope, often listed in feet at 100 yards. As magnification goes up, field of view shrinks. For a given scope design, doubling the power roughly cuts the width of what you see in half.

That matters for hunting because:

• Finding the animal is harder. At high power, bringing the rifle up often puts you on brush or empty grass instead of the deer you saw with your eyes.
• Moving game is harder to follow. A walking or trotting animal leaves a narrow view quickly.
• You lose context. A wide view shows you a second animal, a fence, or a person you need to know about.

Many experienced hunters leave a variable scope on low or middle power while walking or waiting, then turn it up only if there is time and a reason.

Tip: Set your scope to its lowest useful power before each sit or stalk. You can always turn it up. Fumbling for the ring when a deer steps out close is how shots are missed.

Objective size, exit pupil and low light

The best hunting light often comes in the first and last minutes of legal shooting time. That is where objective size and exit pupil enter the picture.

Exit pupil is the beam of light leaving the eyepiece. You can estimate it by dividing the objective diameter by the magnification:

• A 40 mm objective at 4x gives a 10 mm exit pupil.
• The same scope at 9x gives about a 4.4 mm exit pupil.
• A 50 mm objective at 10x gives a 5 mm exit pupil.

Your own pupil opens wider in dim light, and how wide it can open tends to decrease with age. When the scope's exit pupil is smaller than your eye's pupil, the image looks dimmer. That is why turning the power down at dusk often makes the picture brighter and easier to use.

A larger objective allows a bigger exit pupil at higher power, but it is not free:

• It adds weight and bulk.
• It usually needs taller rings, which can make a consistent cheek weld harder.
• Glass quality and coatings matter as much as size. A well-made 40 mm scope can look better than a poorly made 50 mm one.

Always follow your state's legal shooting hours, regardless of how bright your scope looks.

Mirage, target ID and when more power helps

More magnification is not only about shooting farther. It also helps you see.

• Target identification. On a long shot, more power helps confirm antlers, sex, species and what is behind the animal. Never use a riflescope as a substitute for binoculars when scanning, since that means pointing a rifle at whatever you look at. Carry binoculars for glassing.
• Shot placement. A clearer view of the shoulder and vitals, or a branch in the path, helps you decide whether to shoot.
• Mirage. On warm days, heat rising off the ground makes the image shimmer. Mirage looks worse at high power and can make the target blurry. Dropping the power often gives a cleaner picture.
• Wobble. At high power, every movement of the rifle is magnified. Off a solid rest that is fine. Offhand or off sticks, it can make you rush the shot.

A good rangefinder does more for long-range ethics than extra magnification does, because knowing the exact distance matters more than seeing it bigger.

Matching the scope to your rifle and cartridge

A scope should fit the rifle it rides on, in weight, size and purpose.

• Light rifles and mountain rifles feel unbalanced with a heavy, high-power scope. A compact 2-7x, 3-9x or 2.5-10x keeps the package easy to carry.
• Brush guns and lever actions pair well with low power variables or fixed 4x scopes. Check that your rifle has a way to mount a scope, and whether the action ejects upward.
• Flat-shooting cartridges used for open country can make good use of more magnification if you have practiced at distance.
• Short-range cartridges and shotgun slug guns gain little from high power. A 2-7x or similar is plenty.
• Heavy recoil calls for good eye relief. Check the eye relief listing and make sure you can get a full sight picture without crowding the eyepiece.

Mounting matters too. Use rings and bases made for your rifle, mount the scope as low as the objective and bolt handle allow, and set eye relief in your actual shooting position. Shop matching scope mounts when you choose your scope.

A quick checklist before you buy

1. Write down your closest likely shot and your farthest ethical shot in the places you hunt.
2. Choose a magnification range that covers both, with the low end on the conservative side.
3. Check the field of view at low power if you hunt thick cover.
4. Pick an objective size that gives a usable exit pupil at the power you will use at dusk.
5. Weigh the scope against your rifle and how far you carry it.
6. Confirm eye relief for your cartridge's recoil.
7. Budget for quality rings, a rangefinder and practice ammunition.

Shopping for a hunting scope on Outlandory

When you have narrowed down the magnification range, compare scopes side by side. Each scope on Outlandory has one product page showing every shop's offer, new, used and auction, with the total price including shipping. Price history charts and price alerts help you buy at the right time.

Start with riflescopes, then pick up scope mounts for your rifle. Used listings show the seller's details and an item number, and shops list their return policies, which is worth reading before you buy any optic.