Eye & Ear Protection That Works

Lesson 4 of 33 · Module 1, lesson 4

Assumes the Hunting Primer. New here? Start there first.

Your objective

By the end, you'll be able to select and properly fit hearing and eye protection appropriate for range shooting, and explain why each matters.

Concept ~7 min

The ringing starts after the second shot and doesn’t go away. A few sessions later it’s a constant tone in a quiet room. Five years later, it’s a permanent companion and the audiologist confirms: the damage was done at the range, early, before it felt serious. Hearing loss from shooting is the most common preventable injury for hunters and shooters — and it is entirely avoidable.

Quick recall

From the primer lesson Hearing Protection and Recoil Management — at what decibel level can a single brief exposure cause immediate, permanent hearing damage?

Around 140 dB — the level reached by most rifle and pistol shots 85 dB — the OSHA industrial threshold for sustained exposure 100 dB — loud music or a chainsaw

Show answer

Correct: Around 140 dB — the level reached by most rifle and pistol shots — Right. NIOSH sets the immediate-damage threshold at 140 dB peak SPL. A .22 LR is around 140 dB; a centerfire rifle is often 160–170 dB. One unprotected shot can cause permanent damage.
Not quite: 85 dB — the OSHA industrial threshold for sustained exposure — 85 dB is the sustained-exposure threshold for occupational noise, but a gunshot is an impulse noise — a single peak above 140 dB can cause immediate, irreversible damage with no warning.
Not quite: 100 dB — loud music or a chainsaw — 100 dB sustained will damage hearing over time, but firearms are impulse events that easily exceed 140 dB. The peak, not the average, is what matters for gunshot hearing damage.

Why gunshot hearing damage is different

Most people understand that loud noise hurts hearing. What they don’t always grasp about firearms is the impulse problem: a gunshot isn’t a sustained noise like a lawnmower. It’s an extremely loud spike — 140 to 175 dB for common firearms — that lasts a fraction of a second. That spike is above the threshold for immediate, permanent cochlear hair-cell damage with no warning, no pain, and no recovery.

Your cochlea (the hearing organ) has about 15,000 hair cells. They do not regenerate. Each loud impulse destroys some. Early damage shows up as temporary ringing (tinnitus). Repeat it enough and the ringing becomes permanent. Accumulate enough damage and high-frequency hearing loss follows — the kind that makes voices hard to understand in a noisy room, or makes it impossible to hear a turkey gobbling at distance.

Choosing hearing protection: NRR and what it actually means

Hearing protection is rated by NRR (Noise Reduction Rating) — a laboratory number in decibels. The key facts about NRR:

An NRR-33 earplug is not 33 dB quieter in the real world. NIOSH recommends applying a 50% correction factor: an NRR-33 plug gives you roughly 16–17 dB of effective protection in practice, because fit is imperfect.
Fit matters as much as rating. An NRR-33 plug inserted carelessly provides less protection than an NRR-25 plug fitted correctly.
The minimum recommended NRR for any live-fire shooting is 25 or higher. For indoor ranges or high-volume sessions, aim for 30+.

Types of hearing protection:

Foam earplugs — highest NRR available (often 30–33), cheapest, disposable. The catch: correct insertion is critical (see fitting, below). They’re the best single-device choice for high-noise environments when fitted properly.

Earmuffs — easy to put on and take off correctly, consistent fit, NRR typically 20–28. Convenient for short sessions or when you need to communicate between strings. A lower NRR than well-fitted foam plugs.

Electronic earmuffs — same protection as passive muffs but amplify low-level sounds (conversation, game) and cut loud impulses. More expensive but genuinely useful for hunting where hearing the environment matters. Still check the NRR; don’t assume “electronic” means “better protection.”

The why When to double up: plugs under muffs

Doubling up (foam plugs worn under earmuffs) is standard practice for indoor ranges, suppressed-fire ranges (where the muzzle blast is reduced but still present), and any high-volume session with many consecutive shots. The combined NRR is not additive — you can’t add the two numbers — but NIOSH’s formula gives approximately a 5 dB improvement over the higher-rated device alone. For a .308 rifle at an indoor range, doubling up is the appropriate choice.

Fitting foam earplugs correctly

Foam plugs fail most often because of bad insertion. The correct technique:

Roll the plug between your fingers into a tight, thin cylinder.
Reach over the top of your head with the opposite hand to pull the ear canal slightly upward and open it.
Insert the rolled plug quickly and hold it in for 20–30 seconds while the foam expands to fill the canal.
Check the fit by covering your ears with your palms. The world should go noticeably quieter with the plugs than without. If there’s no difference, re-insert.

A plug that sits proud of the ear canal (visible without pulling) is not sealed.

Four circular steps for foam earplug insertion: Step 1 roll thin, Step 2 pull ear canal open, Step 3 insert and hold 20-30 seconds, Step 4 check fit with cover-ears test. Arrows connect steps left to right. — Diagram (not a photo). Correct foam earplug insertion. A plug that sits proud of the canal is not sealed — re-insert.

Eye protection: what “impact-rated” actually means

Regular sunglasses, prescription glasses, or safety glasses without the right marking are not adequate eye protection for shooting. The risk at a range is not just UV light — it is:

Ejected brass from your firearm or a neighbor’s
Powder and primer residue blowback
Fragments from a squib load or case failure
Ricocheted debris from steel targets

What to look for: Eye protection for shooting should be marked ANSI Z87.1+ (the “plus” indicates high-impact rating, tested against a steel ball projectile). Most shooting glasses from reputable manufacturers carry this mark and use polycarbonate lenses, which are naturally shatter-resistant and lightweight.

Regular sunglasses may not be labeled at all or may bear ANSI Z80.3, which is a prescription optical standard — not an impact test. If it doesn’t say Z87.1+, don’t use it on the range.

Edge case Lens color and tint: does it matter?

Lens tint is about contrast and light conditions, not protection. For outdoor shooting, a yellow or amber lens improves contrast on overcast days; gray/smoke is neutral in bright sun. For indoor ranges, clear lenses are best. The tint does not change the impact rating — any Z87.1+ lens provides the same protection regardless of color. Pick the tint that works for your conditions, not the one that looks cool.

Check your protection plan

Knowledge check

You're heading to an indoor pistol range for a 100-round session. What hearing protection setup is most appropriate?

Foam plugs (NRR 33) under earmuffs (NRR 26) — doubled up Electronic earmuffs (NRR 22) — they cut the loud shots and let you hear the range officer Foam plugs (NRR 33) only — they have the highest NRR

Show answer

Correct: Foam plugs (NRR 33) under earmuffs (NRR 26) — doubled up — Right. Indoor ranges are louder because the muzzle blast and report bounce off walls and ceiling. Doubling up is the standard for indoor shooting. The combined protection exceeds either device alone.
Not quite: Electronic earmuffs (NRR 22) — they cut the loud shots and let you hear the range officer — Electronic muffs are great, but NRR 22 may not provide enough protection for a high-volume indoor session. For indoor ranges, doubling up (plugs under muffs) is the right call, or at minimum muffs with NRR 28+.
Not quite: Foam plugs (NRR 33) only — they have the highest NRR — Foam plugs alone with correct fit are acceptable for outdoor ranges. For indoor ranges with sustained firing, doubling up is better practice. Plugs alone may also make it hard to hear the RSO.

Knowledge check

Which marking on a pair of shooting glasses confirms they meet the impact standard for range use?

ANSI Z87.1+ (the plus sign indicates high-impact rated) UV400 — blocks 99% of UV rays ANSI Z80.3 — the optical standard for corrective lenses

Show answer

Correct: ANSI Z87.1+ (the plus sign indicates high-impact rated) — Correct. The plus sign is the critical detail — it means the lens passed the high-impact test (steel ball projectile at 150 ft/sec). Without the plus, you have only basic impact protection.
Not quite: UV400 — blocks 99% of UV rays — UV400 is a sun-protection rating, not an impact rating. It tells you about lens tint and UV filtration, not whether the lens will stay intact if brass hits it.
Not quite: ANSI Z80.3 — the optical standard for corrective lenses — Z80.3 is the prescription optical standard, not an impact test. Prescription glasses often carry this mark — it means the optics are correct, not that the lens won't shatter.

Knowledge check

After a range session your ears ring for an hour before going quiet. This means:

Your cochlear hair cells sustained acute trauma — damage is accumulating even though the ringing stopped Your ears are adapting to the range environment — this is normal and stops over time Your ear protection is working — the ringing means it's absorbing the sound

Show answer

Correct: Your cochlear hair cells sustained acute trauma — damage is accumulating even though the ringing stopped — Right. Temporary threshold shift (temporary ringing) is evidence of acute hearing stress. If this keeps happening, the shifts accumulate into permanent loss. The ringing stopping is not 'no harm done.'
Not quite: Your ears are adapting to the range environment — this is normal and stops over time — There is no such thing as ears 'adapting' to gunfire. The ringing is temporary trauma. Continued exposure accelerates the permanent damage that eventually doesn't ring anymore — because the hair cells are gone.
Not quite: Your ear protection is working — the ringing means it's absorbing the sound — Ringing after wearing protection means the protection wasn't sufficient — either the wrong type, wrong fit, or the exposure exceeded what the protection could handle. Correct the protection, not the interpretation.

Take it to the range

Range session: PPE check

0/6

Safety Choose hearing protection appropriate for your range environment: plugs alone (outdoor, low volume), muffs alone (outdoor, moderate), or doubled up (indoor or high-volume).
Safety If using foam plugs, roll them thin, pull the ear canal open, insert and hold 20–30 seconds, then verify fit with the cover-ears test.
Confirm your shooting glasses are marked ANSI Z87.1+. If not, replace them before the session.
Carry at least two spare sets of foam plugs in your range bag for guests and for a failed plug. A plug that falls out mid-session leaves you unprotected.
If using electronic muffs, check the battery before you leave home — dead electronics revert to passive, but confirm the NRR is still adequate.
For hunting: carry plugs in a coat pocket for any situation where a shot may happen quickly (e.g. dove field or squirrel woods). One unprotected field shot won't ruin your hearing — accumulating them over a season will.

Sources

ISOtunes — How Much Hearing Protection is Needed for Shooting: https://isotunes.com/blogs/educational-resources/how-much-hearing-protection-is-needed-for-shooting
Tactical Ear Safety — Recommended NRR for Shooting: https://tacticalearsafety.com/what-is-the-recommended-nrr-for-shooting/
Hearing Review — Firearms and Hearing Protection: https://hearingreview.com/hearing-loss/patient-care/evaluation/firearms-and-hearing-protection
ANSI Blog — ANSI/ISEA Z87.1 Standard for Safety Glasses: https://blog.ansi.org/ansi/ansi-isea-z87-1-2025-safety-glasses-eye-protection/
USCCA — Shooting Glasses 101: https://www.usconcealedcarry.com/blog/shooting-glasses-101-choosing-the-right-eye-protection/
Audibel — Protecting Your Hearing While Shooting and Hunting: https://www.audibel.com/preventative-care/hearing-protection-while-shooting/
SCDNR General Range Rules: https://www.dnr.sc.gov/shooting/pdf/GeneralRangeRules.pdf

If you remember nothing else

A single gunshot exceeds 140 dB — well above the threshold for immediate, permanent hearing damage with no warning.
Hearing loss from shooting is cumulative and irreversible — you don't get the lost hearing back.
Doubling up (foam plugs under earmuffs) is the standard for indoor ranges or high-volume shooting sessions.
NRR ratings are a laboratory measure — real-world protection is lower; fit matters as much as rating.
Eye protection must be impact-rated (ANSI Z87.1+ marked) — regular sunglasses are not adequate.

How ready do you feel?

How ready are you to choose, fit, and wear the right hearing and eye protection for your next range session?

Before you go — a quick look back

Distributed practice: one fast recall from an earlier lesson keeps it from fading.

Quick recall

From Range Commands & Firing-Line Etiquette — what is the one range command that anyone on the range can call, and what is the immediate correct action when you hear it?

Show me the answer

Show answer

Correct: Show me the answer — Cease fire — called by anyone, any time. Immediate action: stop trigger pressure now (not after the current shot), remove finger to indexed position on the frame, keep the muzzle in a safe direction downrange, and wait for RSO instruction.

Done with this lesson?

Mark it complete to track your way through the path. Saved on this device — no account needed.