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Subsonic Ammo

What is subsonic ammo? Well, in short, subsonic ammo doesn't break the sound barrier. It is a cartridge that has less energy. The advantage of subsonic rounds is noise reduction when paired with a suppressed firearm. We stock a variety of calibers from subsonic .22lr ammo to 9mm, 7.62x39 and more. Shop today at your online source for subsonic ammunition, Palmetto State Armory.

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  1. AAC 9mm Subsonic Ammo 147 Grain FMJ 500rd with 30 Cal Ammo Can

    AAC 9mm Subsonic Ammo 147 Grain FMJ 500rd with 30 Cal Ammo Can

    Rating:
    98%
    (28)
    $169.99 $0.34
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  2. Winchester Super Suppressed 300 Blackout 200gr Subsonic FMJOT Ammo, 125Rds

    Winchester Super Suppressed 300 Blackout 200gr Subsonic FMJOT Ammo, 125Rds

    Rating:
    95%
    (23)
    Regular Price $129.99 Special Price $89.99
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  3. Winchester .300 AAC Blackout 200 gr Super Suppressed Subsonic Ammunition, 20 Rounds - SUP300BLK

    Winchester .300 AAC Blackout 200 gr Super Suppressed Subsonic Ammunition, 20 Rounds - SUP300BLK

    Rating:
    95%
    (391)
    Regular Price $22.99 Special Price $16.99 $0.85
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  4. Federal Subsonic .45-70 Government 300Gr TSP Ammo, 20Rds

    Federal Subsonic .45-70 Government 300Gr TSP Ammo, 20Rds

    Regular Price $47.99 Special Price $42.79 $2.14
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  5. Federal Subsonic .308 Winchester 205Gr THP Ammo, 20Rds

    Federal Subsonic .308 Winchester 205Gr THP Ammo, 20Rds

    Regular Price $39.99 Special Price $35.89 $1.79
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  6. Federal Subsonic .30-30 Winchester 170Gr TSP Ammo, 20Rds

    Federal Subsonic .30-30 Winchester 170Gr TSP Ammo, 20Rds

    Regular Price $32.99 Special Price $29.19 $1.46
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  7. Scorpion Ammo 300BO 220gr Subsonic FMJ 20rd - 300B220-SUB20

    Scorpion Ammo 300BO 220gr Subsonic FMJ 20rd - 300B220-SUB20

    Rating:
    91%
    (7)
    Regular Price $19.99 Special Price $16.99 $0.85
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  8. Winchester Ammunition Super Suppressed .400 Legend 300 gr OT 20rds

    Winchester Ammunition Super Suppressed .400 Legend 300 gr OT 20rds

    $23.99 $1.20
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  9. Hornady Subsonic .338 ARC 307 gr Sub‑X® Ammo, 20rds - 82272

    Hornady Subsonic .338 ARC 307 gr Sub‑X® Ammo, 20rds - 82272

    Rating:
    98%
    (8)
    Regular Price $43.99 Special Price $38.79 $1.94
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  10. Lehigh Defense Maximum Expansion .300 AAC Blackout 194 gr BTHP 20rds Rifle Subsonic Ammo for Subsonic Accuracy - LA300BLK-194-ME

    Lehigh Defense Maximum Expansion .300 AAC Blackout 194 gr BTHP 20rds Rifle Subsonic Ammo for Subsonic Accuracy - LA300BLK-194-ME

    Regular Price $75.99 Special Price $67.99 $3.40
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  11. Federal Top Gun Subsonic 12ga 2.75" #7.5 - 25TGM123 7.5

    Federal Top Gun Subsonic 12ga 2.75" #7.5 - 25TGM123 7.5

    $13.99 $0.56
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  12. Hornady Subsonic 7.62x39mm Ammunition, 20 Rounds Sub-X 255Gr - 80787

    Hornady Subsonic 7.62x39mm Ammunition, 20 Rounds Sub-X 255Gr - 80787

    Rating:
    90%
    (4)
    $35.99 $1.80
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  13. Fiocchi Range Dynamics Subsonic 5.7x28mm 62GR FMJ Ammunition, 50 Rds - 57SUB62

    Fiocchi Range Dynamics Subsonic 5.7x28mm 62GR FMJ Ammunition, 50 Rds - 57SUB62

    Rating:
    95%
    (367)
    Regular Price $32.99 Special Price $26.99 $0.54
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  14. Selier & Bellot 7.62x51mm Ammo 200 Grain FMJ Subsonic, 20 rds/box - SB762SUBB

    Selier & Bellot 7.62x51mm Ammo 200 Grain FMJ Subsonic, 20 rds/box - SB762SUBB

    Rating:
    100%
    (3)
    $32.99 $1.65
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  15. Remington Subsonic 220 gr OTFB .300 Blackout Rifle Ammo, 20/box - 28430

    Remington Subsonic 220 gr OTFB .300 Blackout Rifle Ammo, 20/box - 28430

    Rating:
    90%
    (2)
    $30.99 $1.55
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  16. Hornady Subsonic 9mm Luger 147 gr XTP Ammo, 25/box - 90287

    Hornady Subsonic 9mm Luger 147 gr XTP Ammo, 25/box - 90287

    Rating:
    90%
    (8)
    $27.99 $1.12
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  17. Hornady Subsonic .45-70 Government 410 Gr Sub-X Ammo, 20rds - 82742

    Hornady Subsonic .45-70 Government 410 Gr Sub-X Ammo, 20rds - 82742

    Rating:
    100%
    (5)
    $47.99 $2.40
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  18. Hornady Subsonic 395 gr Sub-X .450 Ammo, 20/box - 82247

    Hornady Subsonic 395 gr Sub-X .450 Ammo, 20/box - 82247

    Rating:
    92%
    (5)
    $42.99 $2.15
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  19. Hornady Subsonic 230 gr XTPS .45 Auto Ammo, 20/box - 90971

    Hornady Subsonic 230 gr XTPS .45 Auto Ammo, 20/box - 90971

    $28.99 $1.45
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  20. Hornady Subsonic 180 gr XTPHP .40 S&W Ammo, 20/box - 91369

    Hornady Subsonic 180 gr XTPHP .40 S&W Ammo, 20/box - 91369

    Rating:
    100%
    (1)
    Regular Price $29.99 Special Price $26.59 $1.33
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  21. Hornady Subsonic 175 gr Sub-X .30-30 Win Ammo, 20/box - 80809

    Hornady Subsonic 175 gr Sub-X .30-30 Win Ammo, 20/box - 80809

    Rating:
    100%
    (2)
    Regular Price $41.99 Special Price $37.99 $1.90
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  22. Remington Subsonic 147 gr Flat Nose Enclosed Base 9mm Ammo, 50/box - S9MM9

    Remington Subsonic 147 gr Flat Nose Enclosed Base 9mm Ammo, 50/box - S9MM9

    Rating:
    91%
    (9)
    Regular Price $23.99 Special Price $21.29 $0.43
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  23. Remington Subsonic 230 gr Flat Nose Enclosed Base .45 ACP Ammo, 50/box - S45AP4

    Remington Subsonic 230 gr Flat Nose Enclosed Base .45 ACP Ammo, 50/box - S45AP4

    Regular Price $36.99 Special Price $32.69 $0.65
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  24. Sellier & Bellot Subsonic 9mm 150gr FMJ Ammo, 50rds - SB9SUBB

    Sellier & Bellot Subsonic 9mm 150gr FMJ Ammo, 50rds - SB9SUBB

    Rating:
    95%
    (8)
    $21.99 $0.44
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Learn More about Subsonic Ammo

What Is the Purpose of Subsonic Ammo?

Subsonic ammunition is engineered to fly below the speed of sound, which is about 1,125 feet per second (fps) at sea level. By remaining under this threshold, these rounds eliminate the sonic crack created by breaking the sound barrier, significantly reducing noise levels.

Subsonic bullets’ main purpose is to provide quieter shooting experiences, especially when used with suppressors. This makes them ideal for situations where noise must be minimized, such as hunting or tactical operations. Subsonic rounds also reduce the disturbance caused to nearby people or animals, making them a practical option for areas with sound restrictions.

What Are the Disadvantages of Subsonic Rounds?

Although subsonic ammunition offers notable advantages, it is not without trade-offs.

Lower Velocity: Subsonic bullets travel slower, which reduces their range and penetration power compared to supersonic ammunition.

Less Kinetic Energy: The reduced speed means less energy transfer on impact, which can limit their effectiveness for large game or long-range engagements.

Pronounced Bullet Drop: Subsonic rounds often follow a more curved trajectory, requiring shooters to adjust for significant bullet drop at extended distances.

Caliber Constraints: While larger calibers tend to perform well in subsonic configurations, smaller calibers can struggle to maintain stability and effectiveness.

What Are the Top Subsonic Cartridges?

Several cartridges stand out in subsonic configurations, each suited to specific applications:

.300 Blackout: Known for its versatility, this cartridge works seamlessly in AR-15 platforms and is optimized for suppressed shooting.

9mm: A popular and affordable option, subsonic 9mm rounds are widely used in suppressed pistols and pistol-caliber carbines.

.45 ACP: With its inherently subsonic velocity, the .45 ACP is a natural fit for suppressed firearms and close-range applications.

.22 LR: Subsonic .22 ammunition is perfect for small game hunting and quiet target practice due to its low cost and availability.

7.62x39mm: Though less common, subsonic variants of this cartridge are effective in AK-style rifles for tactical scenarios.

Practical Uses for Subsonic Ammo

Subsonic ammunition serves many purposes, often tailored to specific shooting needs.

Hunting: Hunters benefit from quieter shots, reducing the risk of scaring off game. Subsonic rounds work well for small game and pest control.

Tactical Operations: Subsonic ammo paired with suppressors enables stealthy operations for military or law enforcement, allowing for covert engagements.

Home Defense: Subsonic rounds can reduce muzzle blast and noise indoors, making them a practical choice for suppressor-equipped home defense firearms.

Recreational Shooting: Many shooters prefer subsonic ammunition for its reduced recoil and quieter operation during range sessions.

The Benefits of Subsonic Ammo

The unique features of subsonic ammunition provide several benefits that appeal to various types of shooters.

Noise Reduction: Subsonic rounds combined with suppressors create a quieter shooting experience, protecting hearing and minimizing disturbance to others.

Recoil Management: Subsonic ammunition’s slower velocities result in less felt recoil, improving accuracy and comfort, especially for beginners.Stealth Capability: The reduced noise signature enhances discretion for hunters and tactical users, allowing follow-up shots without detection.Comfortable Shooting: Subsonic ammunition makes long shooting sessions more enjoyable due to its lower noise and recoil levels.

What does Subsonic Ammo Cost?

The cost of subsonic ammunition can vary significantly depending on the caliber and manufacturer. While generally more expensive than standard supersonic rounds, the price is often justified by its specialized design and performance.

Affordable Options: Subsonic 9mm and .22 LR rounds are relatively inexpensive, offering quiet performance at a low cost.

Premium Calibers: High-performance subsonic cartridges like .300 Blackout can be more expensive, reflecting their niche applications and production costs.

Reloading subsonic ammunition is a cost-effective alternative for enthusiasts. It provides greater control over ballistics and significant savings for less common calibers.