Mason Blake
The speed of sound is around 1100 feet per second or 761 miles per hour at sea level and room temperature. When a projectile surpasses this speed, it breaks the sound barrier, creating a loud sonic boom. This speed is known as Mach 1. Several factors influence whether a projectile will break the sound barrier, including the type of ammunition, barrel length, and pressure. Magnum rounds are typically louder than normal options within the same caliber. For example, the Ruger Air Magnum Break Barrel (.22 cal) is considered very loud by users. The Ruger Mark 4 pistol's velocity can also vary depending on the barrel length. Longer barrels generally result in higher velocities. Additionally, the type of powder used can impact velocity, with slow-burning powder taking longer to burn up and creating higher muzzle velocities.
| Characteristics | Values |
|---|---|
| Speed of sound | 1100 feet per second or 761 miles per hour at sea level and ambient temperature |
| Speed of Ruger Air Hawk Elite 2 | 1200 feet per second |
| Speed of Ruger MK II with a 10" barrel | 1155 feet per second |
| Speed of 4 1/2" Ruger Standard pistol | 1195 feet per second |
| Speed of 5 1/2" Ruger Single-Six | 1050 feet per second |
| Speed of 4 1/2" Ruger Standard barrel | 950 feet per second |
| Speed of Ruger slabside MK III with a 6 7/8" barrel | 1120 feet per second |
| Speed of 18.5" Ruger 10/22 | 1200 feet per second |
| Speed of 20" Savage | 1220 feet per second |
| Speed of Marlin 39A's 24" barrel | 1260 feet per second |
| Speed of CCI Mini-Mags | 1155 feet per second |
| Speed of CCI Stingers | 1600 feet per second |
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What You'll Learn
The Ruger Air Magnum is louder than expected
Several factors contribute to the loudness of a firearm, including the type of ammunition, barrel length, and presence or absence of a suppressor. The Ruger Air Magnum, being a magnum firearm, is likely to produce louder reports than standard firearms. Additionally, the choice of ammunition can significantly impact the noise level. Supersonic ammunition, which includes most rifle ammunition and some handgun cartridges, breaks the sound barrier and creates a loud sonic boom.
The velocity of a projectile is influenced by factors such as barrel length, bullet weight, bore friction, powder burn rate, and powder charge weight. In the case of the Ruger Air Magnum, users have reported that it is louder than expected, even when compared to other firearms in its class. This could be due to a combination of factors, including the specific design of the firearm, the type of ammunition used, and individual variations in hearing sensitivity.
To address the loudness of the Ruger Air Magnum, some users have considered using suppressors or silencers. However, it is important to note that suppressors may not be effective on piston guns, as the piston itself contributes significantly to the overall noise level. Alternative methods to reduce noise include working on reducing spring and piston noise by tarrying the spring and buttoning the piston. Additionally, users can consider modifying the barrel by threading the end or creating a threaded barrel bushing with a set screw, although this may require the assistance of a professional.
It is important for users of the Ruger Air Magnum to prioritize their safety and the safety of those around them. This includes taking measures to reduce noise levels to prevent hearing damage. Additionally, users should always follow local laws and regulations regarding firearm use and ensure they have adequate training and knowledge to operate their firearms safely.
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The sound barrier is typically broken at 1100 feet per second
The speed of sound, or Mach 1, is typically defined as 1100 feet per second at sea level. The speed required to break the sound barrier varies depending on altitude and weather conditions. For example, at 30,000 feet, the speed required to break the sound barrier is just under 1000 feet per second.
The sound barrier is broken when an object travels faster than the speed of sound. This creates a sudden increase in aerodynamic drag, which can cause significant aircraft drag and lead to catastrophic accidents. During World War II, pilots reported aircraft tearing apart when approaching the speed of sound, describing it as hitting an invisible wall.
Austrian physicist Ernst Mach, whom the Mach number is named after, studied supersonic motion and the effects of breaking the sound barrier. He discovered that when an object moves faster than the speed of sound, the air in front of it is compressed, resulting in distinct "boom" sounds and increased drag.
Breaking the sound barrier was first achieved by U.S. Air Force Captain Chuck Yeager on October 14, 1947, in the Bell X-1 rocket plane. Yeager reached a speed of Mach 1.06, or 700 miles per hour, at an altitude of 43,000 feet. This achievement dispelled the myth that a sound barrier could not be broken and paved the way for further advancements in supersonic flight.
Regarding the Ruger Air Hawk Elite 2, its manual states that it has a muzzle velocity of 1200 feet per second when using .177 alloy pellets. This exceeds the speed of sound, which is typically considered to be broken at 1100 feet per second. Therefore, the Ruger Air Hawk Elite 2 is capable of breaking the sound barrier under certain conditions.
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The Ruger Mark 4 pistol's velocity differs with barrel length
The speed of sound is typically broken at 1100 feet per second when at sea level. The Ruger Mark 4 pistol's velocity does differ with barrel length. The longer the barrel, the higher the velocity. For example, a 4 1/2" Ruger Standard pistol delivered a velocity of 1195 feet per second, whereas a 5 1/2" Ruger Single-Six chronoed at 1050 feet per second. A 6 7/8" Ruger slabside MK III barrel clocked at 1120 feet per second. The velocity difference per inch of barrel was more pronounced with shorter handgun barrels.
The Ruger MK II with a 10" barrel delivered the fastest velocity with all brands and types of 22 LR ammo. CCI Mini-Mags delivered 1155 fps, which is right at the speed of sound. All other pistols and revolvers delivered sub-sonic velocities with CCI Mini-Mags and other high-velocity 22 LR ammo. That said, CCI Stingers, rated at 1600 fps in a 24" rifle, delivered 1180 fps from a 4 5/8" Single-Six revolver, which is over the speed of sound.
Standard velocity cartridges with 40gr bullets are rated at 1080 fps from a 24" barrel. High-velocity 22 LRs come in several different bullet weights, so muzzle velocity varies quite a bit. In general, 20" is considered the optimum rifle barrel length for high-velocity cartridges.
The Ruger Mark 4 pistol's velocity is dependent on barrel length. The longer the barrel, the higher the velocity. However, once the powder in the cartridge has been fully consumed, the projectile has reached maximum velocity, and additional barrel length just produces friction.
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CCI Stinger ammunition can deliver over the speed of sound
CCI Stinger ammunition is known for its high-performance and hyper-velocity capabilities. Introduced in 1975 by Cascade Cartridge Inc. (CCI), the CCI Stinger is the first hyper-velocity .22 calibre Long Rifle (LR) rimfire ammunition. The CCI Stinger stands out with its ability to deliver muzzle velocities of up to 1,640 feet per second (fps), significantly surpassing the speed of sound.
The CCI Stinger achieves its impressive speed through several innovative design choices. Firstly, the standard .22 rimfire case was elongated, providing more space for additional powder. This increase in powder capacity contributes to the higher muzzle velocity. Additionally, the CCI Stinger utilises a shorter 32-grain copper-plated bullet, which helps maintain the overall length of the cartridge at one inch.
The copper plating on the bullet serves multiple purposes. It acts as a lubricant, reducing friction between the projectile and the barrel, resulting in increased muzzle velocity and reduced barrel wear. Moreover, the copper gilding protects the bullet from oxidation, ensuring the integrity of the ammunition over time.
While the CCI Stinger excels in velocity, there are some considerations regarding its compatibility with certain firearms. The CCI Stinger has a slightly longer cartridge size compared to standard .22 LR ammunition. Due to this, it is not recommended for firearms with match chambers, which are commonly found in rifles. Using the CCI Stinger in firearms with match chambers can lead to bore obstructions and may void the warranty.
However, for firearms without match chambers, the CCI Stinger can be an excellent choice. Users have reported successful and flawless cycling of the CCI Stinger in rifles such as the 1972 Marlin 22LR, achieving impressive accuracy and performance. The CCI Stinger's hyper-velocity capabilities make it a popular choice for varmint hunting, providing fast and effective results.
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Magnum rounds are louder than normal options within a given caliber
The sound of a gunshot is measured in decibels (dB) on a logarithmic scale, with higher numbers indicating louder sounds. Total and complete silence is 0 dB, and sounds 10 times louder than total silence would be 10 dB. Sounds 100 times louder than silence are 20 dB. Every 10 dB increase is a multiple of 10 times the previous rating.
The speed of the bullet also affects the loudness of the gunshot. Bullets that break the sound barrier, which is typically around 1100 feet per second at sea level, create a loud "crack" as they pass through the air. This is especially true for magnum rounds, which have higher velocities due to increased pressure.
It's important to note that the loudness of a gunshot can also depend on other factors such as bullet weight, bore friction, powder burn rate, and powder charge weight. Additionally, the proximity to the muzzle affects the perceived loudness, with the gunshot sounding louder closer to the source.
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Frequently asked questions
Yes, magnum rounds are louder than normal options within a given caliber.
The muzzle velocity of the Ruger Air Hawk Elite 2 is 1200 feet per second when using .177 alloy pellets.
The sound barrier is typically broken at 1100 feet per second when at sea level. Therefore, the Ruger Air Hawk Elite 2 breaks the sound barrier.
Subsonic ammunition can be used as a quieter alternative to the Ruger Magnum.
You can make your Ruger Magnum quieter by using a suppressor.
