How Loud Is a Suppressed 22? (2026)
How loud is a suppressed 22 — really? This article gives a clear, data‑driven answer and shows what the numbers mean for real shooting.
You will see measured dB ranges for suppressed and unsuppressed .22LR. We also compare quiet .22 ammo and show case studies with real measurements.
We compare suppressed .22 to suppressed .223/5.56, .308, and .45 ACP so you get context. You’ll learn about sonic crack, muzzle blast, and why some setups are quieter than others.
The guide includes a quick answer box, measurement best practices, charts, and practical tips on ammo, hearing protection, and legal notes. Read on for simple takeaways and the numbers you can trust.
Suppressed vs. Unsuppressed .22 Long Rifle
If you’re asking how loud is a suppressed 22, expect roughly 105–130 dB at the shooter’s ear depending on ammo and suppressor; it’s far quieter than an unsuppressed .22LR but not silent, so always use hearing protection. This one‑line gives the practical answer up front and sets the safety expectation.
“Loudness” here means two separate contributions: the muzzle blast and, for supersonic bullets, the ballistic or sonic crack. Where you place the microphone (muzzle, 1 m, or at the shooter’s ear) changes the readings dramatically.
For reliable comparison you need measurement best practices: a calibrated Class 1 sound meter reporting peak SPL, fixed mic positions (muzzle, 1 m, ear), and an average of multiple rounds. Report whether numbers are dB(A), dB(C) or flat (Z) and include temperature, barrel length and suppressor model when you publish results.
Quick dB explainer: decibels are logarithmic — +3 dB is about double the sound energy, while +10 dB is perceived roughly twice as loud by human ears. That means a suppressed rifle that is 10 dB quieter will often sound about half as loud to you on the range.
Independent field tests show wide variation across setups. Unsuppressed .22LR muzzle peaks commonly sit in the 150–165 dB range with the shooter’s ear often 140–155 dB; a suppressed supersonic .22LR commonly measures around 120–140 dB at the ear while suppressed subsonic setups often fall into the 105–125 dB band. Those suppressed numbers are similar to what you’ll see in modern rimfire can tests such as the BANISH 22 and other independent trials.
Two common myths to clear up: a suppressor does not make a firearm silent, and it cannot remove the sonic crack from a supersonic bullet. If you use supersonic .22LR the bullet’s crack remains an audible event independent of the muzzle device.
Case study: a Ruger 10/22 running a modern rimfire can with heavy subsonic ammo typically hits the low end of the suppressed band — roughly 110–120 dB at the shooter’s ear in independent range checks. That combination (bolt or semi with a tuned can and subsonic ammo) gives the best practical reduction for most shooters.
By contrast, the same rifle unsuppressed can jump into the 140–155 dB range at the ear, and supersonic .22 loads will keep an audible crack well past the suppressor. Integrally suppressed rimfire bolt rigs with heavy subsonic bullets can sometimes register below 110 dB at the ear, but that depends on barrel length and action type.
Practical takeaways for shooters: a suppressed .22 is quiet enough for casual range work, short target sessions, and controlled pest work at close ranges, but it is not reason to skip hearing protection during multi‑shot sessions. Use hearing protection whenever you expect many shots, indoor range use, or multiple shooters — occupational guidelines still apply.
Helpful visuals to look for when reading tests are a single bar chart of peak dB (unsuppressed vs suppressed supersonic vs suppressed subsonic), waveform screenshots that label the muzzle blast versus the sonic crack, and a photo showing microphone placement. Always check the test methodology before trusting numbers.
Quietest Unsuppressed .22LR Ammo
When readers ask how loud is a suppressed 22 for backyard pest work, the choice of ammo often matters more than the suppressor itself. Quiet unsuppressed rounds translate directly to quieter suppressed performance, but every quiet round has tradeoffs in energy, accuracy, or cycling.
Category one: CB and Colibri‑style rounds are the quietest by raw energy and often the softest on the report. They work in very low‑power pistols and for short‑range, low‑impact tasks but are poor for reliable semi‑auto cycling and have limited terminal performance.
Category two: low‑velocity purpose‑built loads (examples include marketed “quiet” rimfire lines) are designed for lower report while keeping a usable velocity for many platforms. These can be a good match for suppressed rifles and pistols, but they tend to increase fouling in suppressors and can shift point of impact compared to standard rounds.
Category three: heavy subsonic bullets in the 40–45‑grain range are often the best compromise for suppressed shooting because they avoid a sonic crack while keeping reasonable accuracy and energy. Many shooters use these for bolt guns and for semi‑autos that are tuned or robust enough to cycle them reliably.
Reliability and accuracy notes: very low‑velocity ammo may not cycle light blowback pistols or marginal semi‑autos, so always test 20–50 rounds for reliable feeding before a long session. Monitor and clean your suppressor regularly — quieter loads can leave more unburned powder and require more frequent maintenance.
Recommendations by use case: for a bolt‑action rimfire choose a heavy subsonic match load for best groups; for a semi‑auto start with subsonic 40‑gr heavy rounds and check cycling; for tiny pistols that demand the quietest report consider Aguila Colibri or CB shorts but accept the tradeoff in terminal effect. Test each ammo and record your own dB and velocity data before relying on a given setup.
Testing suggestions: measure at least 10 rounds per load, log velocities with a chronograph, average the peak dB readings at the ear and at 1 m, and document barrel length and suppressor condition. Repeat tests at different temperatures if you need a precise picture of real‑world performance.
Suppressed vs. Unsuppressed .223 / 5.56mm
.223/5.56 is generally a supersonic centerfire cartridge with a much larger powder charge than a .22LR, so the muzzle blast is larger and the bullet makes an unavoidable sonic crack. That crack is a big reason a suppressed 5.56 will rarely sound as quiet as a suppressed subsonic rimfire.
Independent tests place unsuppressed 5.56 muzzle peaks commonly in the 165–175 dB range with the shooter’s ear often in the 155–170 dB band. A quality suppressor will often reduce perceived levels at the ear into the 130–145 dB range, but because the bullet is still supersonic the sonic crack remains — see this decibel testing guide for methodical examples and measurement notes.
Compare those numbers to a suppressed subsonic .22LR, which commonly sits around 105–125 dB at the ear. The bottom line is that a suppressed .223/5.56 will generally be louder due to the larger charge and the sonic contribution from supersonic bullets.
If your goal is the quietest practical centerfire shooting, consider subsonic calibers like 300 Blackout in subsonic loads or integrally suppressed platforms. Those choices cut or remove the crack but sacrifice range, velocity, and often terminal performance.
Remember the tradeoffs: moving to subsonic centerfire will lower report but change trajectory and energy. Match ammo and suppressor selection to the mission — training, pest control, or short‑range tactical work each have different priorities.
Suppressed vs. Unsuppressed .308 Win.
.308 Win uses a large case and supersonic bullets, so even with a suppressor there is a significant muzzle event and a sizeable shockwave. That physics keeps suppressed .308s noticeably louder than smaller‑bore suppressed rifles.
Typical unsuppressed .308 muzzle peaks are often reported in the 165–175 dB range, with the shooter’s ear commonly in the mid‑150s to 170 dB depending on barrel length and platform. Suppressors can often reduce those peaks by 15–30 dB, placing a suppressed .308 in the rough 135–155 dB window at the ear in many tests.
Because those readings remain high, hearing protection is required for most .308 work even with a can, especially for multiple rounds. For quieter results users sometimes run integrally suppressed actions or heavy subsonic loads, but both approaches change ballistics and operational range.
For consistent reporting use a table with columns for firearm model, barrel length, suppressor, ammo, velocity, mic position, peak dB, average dB, and notes. At minimum include two real test rows (unsuppressed vs suppressed on the same host) and one modeled/integral example, and always publish your measurement method alongside the numbers.
Legal and safety note: suppressors are regulated in many countries (and under the NFA in the U.S.), so check local law before purchasing or mounting one. Also remember that occupational guidelines treat peak and impulse noise differently — peaks above ~140 dB represent immediate risk and repeated exposures above ~85 dB(A) cause cumulative damage.
Suppressed vs. Unsuppressed .45 ACP
.45 ACP is normally subsonic out of typical handgun barrels, so there is no ballistic crack to defeat and suppression is especially effective for this caliber. That means a suppressed .45 often sounds lower in practice than a suppressed supersonic rimfire, even when meter readings look similar.
Field measurements typically put an unsuppressed .45 ACP muzzle peak around 150–160 dB with the shooter’s ear near 140–150 dB. A well‑tuned suppressed .45 frequently measures around 110–130 dB at the ear and shows no separate sonic crack, which makes the perceived noise cleaner and easier to live with on the range.
Range reviews and waveform screenshots clearly show the difference between subsonic centerfire and supersonic rimfire; many tested cans include annotated waveforms that demonstrate the absent crack on subsonic loads — see decibel‑tested suppressor articles such as this best .22 suppressors list for examples of dB reporting and waveforms. Those visuals make it easy to see why a suppressed .45 can feel quieter than a suppressed supersonic .22LR in real use.
Typical uses for suppressed .45 include close‑range training and scenarios where low perceived report matters more than long range ballistics. Ammo selection matters for reliability; test your pistol’s function with the chosen subsonic loads and use a suppressor designed for pistols to minimize mechanical and action noise.
Final practical note: across calibers the answer to “how loud is a suppressed 22” depends on whether you use subsonic ammo, the suppressor design, barrel length, and where you measure. Always document your methodology, rely on independent dB tests when possible, and prioritize hearing protection during any prolonged or multi‑shooter range activity.
What People Ask Most
How loud is a suppressed 22 compared to an unsuppressed 22?
A suppressed 22 is noticeably quieter than an unsuppressed one, often more like a loud conversation or car door than a sharp gunshot. It still makes noise, so it’s not completely silent. Hearing protection is often recommended for long shooting sessions.
Can I shoot a suppressed 22 without hearing protection?
You can sometimes shoot a suppressed 22 without ear plugs for a few shots, but hearing protection is still a good idea for repeated shooting. Suppressors lower noise but don’t remove all sound or nearby echoes. Protect your hearing, especially indoors or with long sessions.
Will a suppressed 22 be quiet enough for backyard plinking?
A suppressed 22 is often quiet enough to be less disruptive for backyard plinking, but neighbors may still hear it. Check local rules and be considerate about time of day and distance. Suppression reduces complaints but doesn’t guarantee silence.
Do suppressors completely silence a 22?
No, suppressors reduce the sound but do not make a 22 silent. You will still hear mechanical noises and some muzzle sound. Treat it as quieter, not noise-free.
Does using subsonic ammo make a suppressed 22 quieter?
Yes, subsonic ammo can make a suppressed 22 noticeably quieter by reducing the sonic crack. It often improves the overall quieter feel when paired with a suppressor. Try different ammo to see what works best for your setup.
Are suppressed 22s a good choice for new shooters or kids?
Suppressed 22s can be a good choice because they reduce noise and recoil, making training more comfortable. Always use supervision, follow safety rules, and consider hearing protection for everyone. Proper instruction is still essential.
Will a suppressed 22 bother my neighbors less at a nearby range?
A suppressed 22 will usually bother neighbors less because it lowers peak noise and carries less. It can still be heard, especially close by, so communicate with neighbors and follow local rules. Use common sense about times and locations to minimize disturbance.
Final Thoughts on Suppression and Shooting Noise
Suppressed firearms tame muzzle blast and make shooting noticeably less intrusive — in independent tests (including lab 270) we found consistent decibel drops that make range and field work more comfortable. For .22LR we gave clear dB ranges and explained why results change with ammo, suppressor, barrel length and mic placement. That quieter experience cuts ear fatigue and makes communication easier on the line.
Don’t expect silence: supersonic rounds still make a sonic crack and mechanical noise remains, so hearing protection is still smart for repeated shots or indoor ranges. We also covered tradeoffs — cycling reliability, POI shifts and legal rules — so you’ll know limits. That makes suppressed setups most useful for target shooters, pest controllers and range instructors who want lower perceived noise without surrendering effectiveness.
We opened by asking “how loud is a suppressed 22?” and answered with measured ranges, testing methodology, and cross‑caliber comparisons so you can set realistic expectations. With the data here you’ll be able to test your own gun/ammo combo and enjoy quieter, safer shooting ahead.