Hands-Free Glassing: Using the Sling to Steady Optics

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Hands free glassing means using the rifle sling to take the weight of the gun so both hands stay on the binoculars, and using the sling or a bino harness as a brace so the image stops shaking. Handheld glass wobbles with your pulse and your breathing, and a shaking image hides the exact things you are looking for, which are edges, movement and shapes that do not belong. Steady the glass and you see more without walking a single extra step.

Confirm the rifle is unloaded and the action is open before fitting or adjusting a sling, every time. This article is about technique rather than equipment, but the technique only works if the carry system is set up first.

Why handheld binoculars shake

Binoculars magnify everything, including you. Your heartbeat, your breathing, the small corrections your arms make to hold a weight out in front of your face, and any shiver from cold all get multiplied by the same factor as the image. At low magnification you barely notice it. As magnification goes up, the shake grows with it, which is why a bigger number on the barrel does not automatically mean you see more.

What it costs you is specific. A moving image destroys your ability to detect the things that actually reveal an animal: the horizontal line of a back in vertical timber, a flicked ear, an antler tine that does not match the branches around it. Your eye finds those by comparing one frame to the next, and if every frame is different because the glass moved, there is nothing to compare. You end up scanning instead of searching, and scanning finds only animals that are already obvious.

There is a second cost, which is stamina. Holding binoculars unsupported is tiring, and tired arms shake more. People solve that by glassing in short bursts, which is exactly the wrong pattern, because the animals you have not yet found are the ones that need a long, patient look.

Every fix below attacks one of three things: remove the weight you are holding, add a contact point so the glass is supported rather than held, and make it comfortable enough that you can stay there.

Letting the sling carry the rifle

The first problem is that you are already holding something. A rifle in your hands means glassing one handed or setting the rifle down, and setting a rifle down in wet leaves or snow is how optics get fogged and actions get filled with grit. It also puts the rifle out of reach at the exact moment you might need it.

A sling solves this properly. Slung across the body and cinched down, the rifle rides against you instead of hanging and swinging, both hands come free, and the gun stays where you can get to it. The important word is cinched. A sling left at walking length lets the rifle swing forward into the binoculars every time you lean, which is annoying enough that people stop using the sling and go back to carrying the rifle in their hands.

That is why quick adjustment matters more than any other feature for glassing. The length you want for a flat walk is longer than the length you want while standing still with glass up. If shortening the sling takes two hands and thirty seconds of re-threading, you will not do it, and the sling stops being a tool. If it takes one hand and a pull, you will do it every time you stop.

Two rules that do not bend

Confirm the rifle is unloaded and the action open before you fit, adjust or re-route a sling, whether you are on the bench at home or on a hillside. When the rifle is slung and you are glassing, muzzle awareness is still yours: know where it is pointing as you turn, and turn your whole body rather than pivoting the rifle across people or dogs. Never use a riflescope as an observation device. Identification is a job for binoculars, because pointing a firearm at something you have not identified is exactly the sequence that gets somebody killed.

A wide mountain and valley vista of the kind hunters glass from
Country like this is why glassing beats walking. Covering it properly takes both hands and a long sit. Photo via flickr, Public Domain.

Bracing the binoculars themselves

Once your hands are free, the next gain comes from turning the binoculars from something you hold into something that is supported. Every method below works by adding a contact point, and they stack.

Ways to brace binoculars without a tripod
Method How it works Best used when
Elbows on knees, seated Turns your arms into a fixed triangle instead of a floating one Any time you can sit down, which is most of the time
Back against a tree or rock Removes the sway of standing balance from the image Standing glassing where sitting would block your view
Thumbs hooked under cheekbones Locks the glass to your skull so head and image move together Quick looks and cold hands, since it needs no setup
Bino harness strap tensioned Pushing the binoculars forward against the strap creates opposing tension Standing, and the single biggest improvement for the least effort
Rifle sling taken up as a loop The slung rifle becomes an anchor and the webbing takes the wobble When the rifle is on you anyway and there is nothing else to lean on
Trekking pole or shooting stick Adds a third leg you can rest a hand or a forearm on Open ground with nothing to lean against

Scroll the table sideways to see every column.

The harness trick deserves a specific mention because it is nearly free. With binoculars on a chest harness, push them gently forward until the harness straps go tight, then let that tension hold the weight while your hands only steer. The image settles noticeably, and you can hold it far longer than you can hold an unsupported pair.

The sling version works the same way. With the rifle slung tight across your body, taking up a loop of the webbing gives you something to push against, and the rifle’s own mass damps small movement. It is not as solid as sitting with your elbows on your knees, but it is available while standing on a slope where nothing else is.

Tripod versus braced glassing

A tripod is the biggest single upgrade to what you can see, and it is also weight you carry every day for the few hours you use it. Both statements are true, and which one matters depends on the country you hunt.

Tripod mounted

  • The image is genuinely still, so you can search rather than scan
  • You can stay on one patch of country for as long as it takes
  • Costs weight, setup time and a hand to deploy

Braced handheld

  • Always with you and instant, which matters for a fleeting look
  • Works while moving and in thick cover where a tripod cannot be set
  • Limits how long and how carefully you can look

A reasonable rule: if your hunting involves sitting down and looking at a lot of country at distance, the tripod pays for its weight within the first morning. If you are still hunting through timber, working field edges, or sitting a stand where the shot is close, it will stay in the truck and a good brace plus a harness will do everything you need.

The routine: glass, mark, move

Steadiness is only half of it. The other half is having a method, because the eye wanders to whatever is brightest or closest and then declares the area empty.

Glass in bands, not at randomOverlap every sectorFAR BAND, THIRD PASSMID BAND, SECOND PASSNEAR BAND, FIRST PASSGLASSING POSITION
Work the near band first, because close animals are the ones you will spook. Then the middle, then the far edge, moving sector by sector with each one overlapping the last.
  1. Get comfortable before you look

    Sit down, cinch the sling so the rifle stops swinging, and settle your elbows. If you are not comfortable you will not stay, and staying is the whole technique.

  2. Glass the near band first

    Animals close to you are the ones you will bump and the ones you are most likely to skip because you assume you would have already seen them. Clear that ground before you look at the skyline.

  3. Move in overlapping sectors

    Pick a starting edge and move across in small steps, each one overlapping the last, then step the band out and come back the other way. Overlap is what stops a gap forming between passes.

  4. Stop and look, do not sweep

    Hold each sector still long enough for your eye to compare what it is seeing to what it expects. Look for pieces rather than whole animals: a horizontal line, a patch of the wrong colour, an ear.

  5. Mark anything before you move the glass

    The moment you lower the binoculars, that spot disappears. Line it up against a landmark you can find again, range it, and note it on your map before you break position.

  6. Move, then repeat from the new angle

    Country hides animals from one angle and reveals them from another. A short move to a new vantage is usually worth more than another twenty minutes from the same seat.

Rolling green hills with strips of conifer timber and a wildflower slope in the foreground
Broken country like this hides animals in the folds. Walking it finds far less than sitting and grinding through it with glass. Photo via flickr, Public Domain.

Glassing from a stand or a blind

Everything above applies in a stand, with two extra constraints. You are wearing a full body harness attached to a lifeline, and you have less room to move. That actually helps steadiness, because the seat, the tree and the platform give you contact points that you do not get standing on open ground.

Hang the rifle on a hook rather than resting it across your lap. A slung rifle in a seated position swings into your elbows every time you raise the glass, and a rifle balanced on your knees is a rifle that eventually slides. With it hung and within reach, both hands stay on the binoculars and the transition to a shot is one deliberate movement rather than a scramble. Remember that you never climb with a loaded firearm or with the rifle in your hand: unload it, climb, then haul it up on a rope with the muzzle pointed away from you.

Our deer season prep checklist covers inspecting stands and straps before the season, and the complete deer hunting gear checklist covers the harness, lifeline and hanger as part of the stand kit.

A person wearing a backpack standing on a rock ledge looking through binoculars at a mountain valley
Both hands on the glass is only possible if something else is holding the rifle. Photo via flickr, Public Domain.

Setting the sling up for it

None of this works with a sling you cannot change quickly. Unload the rifle, open the action, then set the carry system up deliberately: attachment points that match the rifle, a length you can shorten one handed, and hardware that does not rattle when you turn.

The McLean Dynamic Retention Sling was built around that problem, with a patented two point to one point conversion, maritime grade webbing and all metal hardware, in Black, Coyote Brown, MultiCam and Ranger Green. It carries a 4.92 average from 169 reviews and the company was founded by an Active Duty SOF operator. If your rifle lacks a usable attachment point, quick detach sling mounts handle most conversions.

For the carry positions themselves, see how to carry a rifle while hunting. On steep ground where the rifle rides on the pack instead, our post on a backpack sling for a rifle covers the trade offs, and choosing a rifle sling for hunting is the broader guide.

Frequently asked questions

Does a sling really make glassing easier?

Yes, for a simple reason. It removes the rifle from your hands without putting it on the ground, so both hands are on the binoculars and the gun is still reachable. Cinched tight it also stops the rifle swinging into your elbows while you glass.

Can I use my rifle scope to glass instead of binoculars?

No. Identifying anything through a riflescope means pointing a firearm at something you have not identified, which is an unacceptable risk regardless of how confident you are. Binoculars are for finding and identifying. The rifle comes up only after the decision is made.

Is a tripod worth carrying for deer hunting?

It depends on the country. If you sit and look at open ground at distance, a tripod lets you search properly instead of scanning, and it earns its weight quickly. If you hunt timber, field edges or a stand where shots are close, a bino harness and a good brace will cover you.

What is the single easiest way to steady binoculars?

Sit down and put your elbows on your knees. If sitting is not an option, push the binoculars forward against a tensioned chest harness so the straps carry the weight while your hands only aim them. Both cost nothing and both are immediately noticeable.

Ready to upgrade? Dynamic Retention Rifle Sling for AR-15, Patrol & Hunting
Rated 4.92 out of 5 based on 169 customer ratings
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