For a long time reserved for sport shooters, silencers are entering the world of hunting.
Since 2018, the use of sound moderators, commonly known as silent, has been authorized for hunting in France. These devices, long reserved for sport shooters and professionals, are attracting increasing interest among hunters. But what are the real advantages and disadvantages of these tools? Armurerie Gilles offers to take stock of the situation.
What is a Silencer?
The noise from firearms comes from three main sources:
- At the muzzle: The main noise is caused by the release of combustion gases into the atmosphere. These gases are responsible for most of the total noise, and it's this gas emission that a sound moderator (silencer) reduces.
- Projectile movement: Another noise source is the movement of the bullet, particularly noticeable when it exceeds the speed of sound (about 340 m/s in air). This noise is incompressible and persistent in supersonic regimes.
- The firearm itself: Finally, part of the noise comes from the firearm's mechanism. Semi-automatic weapons, for example, are not completely sealed, and some gases are used for their operation. Therefore, a Kalashnikov or an AR15 (assault rifles) will be noisier than a bolt-action rifle.
An silent is a device attached to the end of a firearm barrel to firearm reduce the noise and muzzle flash produced when the gun is discharged. It works by slowing down and dispersing the ejected gases, thereby decreasing the sound of the detonation. Today, there is a wide variety of silencers for all types of firearms (semi-automatic, shotgun, big game rifles, assault rifles….)
Criteria for Choosing a Hunting Rifle Silencer
When choosing a hunting rifle silencer, several technical criteria must be considered to ensure optimal performance. Among these criteria, threading, attenuation capacity, caliber, weight, material, and dimensions of the silencer play a fundamental role in effectiveness and user comfort.
Threading is essential for attaching the hunting rifle silencer to the firearm's barrel. It's crucial to check the compatibility between the barrel's threading and that of the silencer. Threading is characterized by three aspects: the outer diameter, the pitch (the distance between the peaks of the threads), and the thread angle, typically 60° in the firearms domain. Threadings can be expressed in metric dimensions, like 14x1mm, or in inches, especially for firearms of American origin, such as 1/2-28. Each type of threading requires particular attention to ensure precise and secure mounting.
Metric Dimensions
For example, a 14x1mm threading, also referred to as 14×100, has an outer diameter of 14 mm with a 1 mm pitch, meaning there's a 1 mm distance between the peaks of each thread, or 10 threads per centimeter, making counting or measuring easier. Similarly, an 18x1mm or 18×100 threading has an outer diameter of 18 mm and also includes 10 threads per centimeter.
Inch Dimensions
Anglophones commonly measure in fractions of an inch, often requiring the use of a calculator. The inch, equivalent to 25.4 mm, is their reference unit. Among the most common pitches on firearms of American origin (and not only) are, for example, 1/2-28 and 5/8-24. Here's what these numbers mean:
- 1/2-28: The "1/2" represents half an inch, or 12.7 mm at the thread peaks. The "28" indicates 28 threads per inch. Thus, 1/2-28 corresponds to an outer diameter of 12.7 mm with 28 threads over 25.4 mm.
- 5/8-24: The "5/8" corresponds to 5/8 of an inch, or 15.875 mm. The "24" indicates 24 threads per inch. Therefore, 5/8-24 denotes an outer diameter of 15.875 mm with 24 threads over 25.4 mm.
Tolerances
Additionally, there's the concept of tolerances. Indeed, a 12.7 mm part cannot be inserted into a 12.7 mm hole; one of the parts must be slightly smaller or larger. It's common to measure half an inch at 12.5 mm at the thread peaks. For instance, a 16x1mm threading is often confused with a 5/8-24. While the dimensions are close, they're not interchangeable.
Attenuation Capacity: Effectively Reducing Noise with a Hunting Rifle Silencer
Another crucial criterion is the noise attenuation capacity, expressed in decibels (dB). Without using a hunting rifle with a silencer, the noise can reach dangerous levels, exceeding 130 dB, well above the pain threshold. Using a silencer helps reduce this noise, especially when combined with subsonic ammunition, for optimal results.
The firearm's caliber is also a key element to consider when selecting a silencer. Each model is designed to fit a specific caliber type, ensuring a perfect seal and optimal sound reduction. Whether for shotguns or big game rifles, it's essential to choose a silencer based on the firearm's caliber.
The weight of the silencer directly influences the firearm's handling. A lighter model will facilitate handling and reduce fatigue during long shooting or hunting sessions. However, reduced weight can sometimes compromise noise attenuation effectiveness or the device's durability. Conversely, a heavier silencer might improve firearm stability by limiting recoil
The pain threshold begins at 120dB, the same level as some gunshots (Source: https://www.nicolastiteux.com/blog/sound-design-armes-a-feu/).
Caliber
Suppressors are specific to each Caliber. To reduce sound, a sound moderator works by redirecting the explosion gases through internal baffles. Therefore, choosing a suppressor adapted to the caliber it is meant to moderate ensures a perfect seal and optimized sound reduction. Suppressors are available for both hunting shotguns and big game rifles..
Weight :
The weight of a suppressor is a crucial factor when selecting this accessory for a firearm. A lighter suppressor offers better maneuverability and reduces shooter fatigue, especially during long hunting sessions or sports shooting. However, lighter models may sometimes compromise on noise reduction effectiveness and durability. Conversely, a silent heavier suppressor can enhance weapon stability by reducing recoil, but at the cost of being more cumbersome. It’s essential to find a balance between lightness, effectiveness, and user comfort to meet each shooter’s specific needs.
Suppressor Materials: Strength and Lightness
The materials used in the construction of hunting suppressors are equally important. Stainless steel is strong and heat-resistant, but relatively heavy. Aluminum is lighter and offers a good balance between performance and handling, though it is less durable under intensive conditions. Titanium combines lightness with durability, but its higher cost can be a deterrent for some.
Lastly, the dimensions of the suppressor — in terms of length and diameter — affect both performance and the practicality of the firearm. A longer suppressor offers better sound attenuation but can make the weapon bulkier. The diameter also plays a critical role in gas management, influencing noise reduction and the overall balance of the firearm.
In summary, selecting a shotgun suppressor involves a variety of technical considerations. Striking a balance among these factors is essential to meet the specific needs of the shooter, whether for hunting, sport shooting, or professional use.
Length and Diameter
The length and diameter some silent are key aspects that influence both performance and practicality. A longer suppressor typically offers better noise attenuation noise attenuation by allowing more gas expansion and dissipation. However, this extra length can make the firearm more cumbersome and less maneuverable, particularly in tight environments or for hunters hunters covering long distances. The diameter of the suppressor also plays a crucial role. A wider diameter can enhance noise reduction and improve gas management but may add weight and affect the weapon’s balance. Finding the right compromise between length, diameter, and sound performance is vital to meet the shooter’s specific needs in terms of comfort, handling, and acoustic efficiency.
Hunting Rifle Suppressors vs. Muzzle Brakes
The hunting rifle silencer and muzzle brakes are two devices attached to the muzzle of a firearm, each serving very different purposes. A suppressor, also known as a sound moderator, aims to reduce the sound of the gunshot by attenuating the combustion gases released during firing. This makes shooting more discreet and protects the shooter’s hearing.
In contrast, a muzzle brake is designed to reduce recoil and muzzle rise by redirecting gases to the sides or rear. This redirection improves weapon control and helps maintain accuracy, especially during rapid-fire sequences. While the hunting rifle silencer focuses on noise reduction, the muzzle brake is intended to improve stability and manage recoil more effectively.
Using a hunting rifle with a silencer offers many advantages for hunters. First, noise reduction is a major benefit, making the hunting experience more enjoyable and less disruptive to wildlife and other hunters. Additionally, the reduced sound protects the hunter’s hearing and helps prevent long-term auditory damage.
Moreover, quieter shots are less likely to scare nearby animals, allowing for more shooting opportunities in the same area. Finally, using a suppressor enhances overall shooting comfort, notably by reducing recoil and muzzle flash, which is particularly helpful in low-light conditions.
Despite these advantages, hunting rifles with suppressors do have some drawbacks. The main issue is the extra weight they add to the weapon, which can be inconvenient during extended hunting trips. Also, the added length can make the firearm bulkier and harder to handle, especially in dense environments like forests.
Cost is another factor to consider, as high-quality suppressors can be a significant investment. Lastly, suppressors require regular maintenance to remain effective and ensure long-term durability.
Suppressor Manufacturers
Among the most well-known suppressor manufacturers are:
- Stalon : A renowned Swedish brand known for its high-quality firearm. Founded in 1989, Stalon stands out for its commitment to innovation and performance, offering products that combine lightness, durability, and sound efficiency. Stalon suppressors are particularly appreciated by hunters hunters and sport shooters for their ability to significantly reduce noise while maintaining excellent balance and weapon handling. Thanks to advanced designs and robust materials like aluminum and stainless steel, Stalon suppressors are synonymous with reliability and optimal performance.
- B&T (Brügger & Thomet) : A leading Swiss company specializing in the design and manufacture of suppressors and other firearm accessories. Founded in 1991, B&T is recognized for its high-precision products and cutting-edge technology. B&T suppressors are known for their durability, noise reduction efficiency, and superior performance in various conditions. Used by law enforcement, military and sport shooters worldwide, B&T suppressors reflect Swiss quality, offering outstanding noise reduction while maintaining firearm reliability and handling.
- Recknagel: A German company with over 150 years of experience infirearm accessories, also offers a range of silent high-quality suppressors. Recknagel suppressors are crafted with German precision using robust materials such as stainless steel and aluminum to ensure durability and optimal performance. These suppressors are known for their effective noise reduction, enhancing shooter comfort and reducing environmental disturbance.
Adopting suppressors for hunting offers numerous advantages, both in terms of hunter comfort and safety, and for minimizing environmental impact. However, their use also comes with certain drawbacks that should be considered. By choosing a suppressor suited to your needs and paying attention to technical criteria, you can maximize the benefits of this equipment. Whether you're an experienced or novice hunter, a suppressor can be a valuable ally for a more enjoyable and responsible hunting experience. Armurerie Gilles can help guide you in choosing the perfect suppressor for your shotgun or big game rifles.