Product SKU # :TSSB300BLKSUBA |  MPN: SB300BLKSUBA  | UPC # :754908512461

Sellier & Bellot Ammo 

Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA

Rating(s) starstarstarstarstar55 (221)221   View all Ratings
Write A Review
Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
USDTargetSportsUSA14.40
Pricing Options
USDTargetSportsUSA720.00
Pricing Options
AVAILABLE : 93 in stock
AVAILABLE : 1 in stock

Customers Also Bought

  • Details
  • Shipping
You must be 21 years or older to order ammunition. Ammunition must ship UPS ground. Due to safety considerations and legal/regulatory reasons, Ammunition may not be returned. Please check local laws before ordering. By ordering this Ammunition, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements to purchase this Ammunition.

Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA

The Sellier & Bellot 300 AAC Blackout 200 Grain Subsonic Full Metal Jacket ammunition is designed for target and practice shooting. Manufactured by Sellier & Bellot, a renowned name in ammunition production, this product offers consistent performance and reliability. With this subsonic load, shooters can achieve quieter operation, which is ideal for training or shooting in environments where noise reduction is desirable. This ammunition is crafted with a brass casing and uses Boxer primers, emphasizing quality in materials and construction.

Features and Specifications:

  • Performance Metrics: This ammunition has a muzzle velocity of 1060 fps and a muzzle energy of 499 ft. lbs, providing manageable recoil.
  • Compatibility: Designed for 300 AAC Blackout firearms, well-suited for use at the range or in training scenarios.
  • Bullet Type: Full Metal Jacket, optimizing feeding reliability and reducing barrel fouling.
  • Casing and Primer: Brass casing with Boxer primer for reliable ignition and reloadability.
  • Packaging: Available in bulk quantities, often with free shipping options at Target Sports USA.

Deep Dive

Overview

Sellier & Bellot 300 AAC Blackout Ammunition is crafted to cater to the needs of shooters seeking a reliable subsonic option for practice and target applications. The full metal jacket design ensures smooth feeding and minimal fouling in firearms, making it an excellent choice for extended sessions at the range. The adoption of subsonic loads allows for quieter operation, particularly beneficial for suppressed firearms, enhancing shooter comfort and reducing auditory disturbance.

History and Development

Sellier & Bellot is a storied ammunition brand with roots stretching back to the Czech Republic, known for producing high-quality ammunition for a variety of shooting disciplines. The development of the 300 AAC Blackout round was driven by the needs of special ops and tactical applications, where subsonic performance and compatibility with existing systems were critical. Sellier & Bellot, leveraging its extensive experience in ammunition manufacturing, has produced the 300 AAC Blackout rounds to match these exacting standards, providing shooters with reliable ammunition that marries performance and affordability.

Common Questions and FAQs

  • How is this ammunition packaged, and are bulk options available?
    This ammunition is typically sold in standard boxes, with bulk cases offering free shipping, making it suitable for those looking to purchase in large quantities.
  • Is the Sellier & Bellot 300 AAC Blackout ammo reloadable?
    Yes, this ammunition uses a brass casing and Boxer primers, making it reloadable.
  • What are the benefits of subsonic ammunition?
    Subsonic ammunition is designed to produce less noise, making it ideal for use with suppressors and in noise-sensitive environments.
  • Is this ammunition suitable for hunting?
    While primarily designed for target and practice, users should check local hunting regulations and game size before using it for hunting purposes.
  • Can this be used in non-suppressed firearms?
    Yes, subsonic ammunition can be used in both suppressed and non-suppressed firearms, though the benefits of noise reduction are most apparent with suppressors.
  • Why choose Sellier & Bellot ammunition?
    Sellier & Bellot is known for its high-quality components, reliable performance, and affordable pricing, making it a favored choice among shooters worldwide.

The 'Round Up'

Perfect Fit for:

  • Training / Target Shooting

Why It Stands Out:

Sellier & Bellot's 300 AAC Blackout 200 Grain Subsonic FMJ ammunition stands out for its quality construction and reliable performance, perfectly suited for shooters engaged in practice and target shooting. Whether you're a seasoned shooter or a beginner, this ammunition offers the consistency and subsonic advantage needed to hone your skills. With a commitment to excellence, Sellier & Bellot continues to meet the demands of the shooting community with products that emphasize safety, reliability, and performance.

Field Details
MPNSB300BLKSUBA
UPC754908512461
ManufacturerSellier & Bellot Ammunition
PlatformRifle
Ammo ApplicationTraining / Target Shooting
Ammo TypeSubsonic Full Metal Jacket
Caliber300 AAC Blackout
Grain Weight200 Grain
Quantity Per PackageBox of 20 / Case of 1000
Test Barrel Length16 inches
Muzzle Velocity1060 fps
Muzzle Energy499 ft. lbs
Ballistic Coefficient (G1)558
Case TypeBrass
Primer TypeBoxer
CorrosiveNo
ReloadableYes
Lead FreeNo
Staked PrimerNot Provided
Country of OriginCzech Republic

BULK AMMO - FREE SHIPPING

We offer Free Shipping on bulk ammo purchases for sale online at cheap discount prices. A case of ammo is a bulk ammo purchase.

Look for "FREE Shipping" next to the bulk ammunition price, add the eligible ammo to your cart, and it will be automatically applied to all orders with eligible bulk ammo products. No coupon code needed 24 hours a day, 7 days a week at Target Sports USA.

UNLIMITED FREE Shipping available on all orders with Target Sports AMMO+ Membership!




AMMO+ MEMBERS GET THE BEST PERKS

We don’t believe in hidden fees or padded shipping costs. While others sneak in charges, we keep it simple. Join AMMO+ and get 8% off every ammo order, free shipping, exclusive member perks, and a welcome gift just for signing up. Straight-up savings. No games.

8% Off Icon

8% OFF AMMO

Anytime. Anywhere. Every Order.

Free Shipping Icon

FREE SHIPPING

on every order. Box, case, or pallet.

Exclusives Icon

EXCLUSIVES

from giveaways to annual events.


Jeep Gladiator

WIN A JACKED UP JEEP® GLADIATOR!

AMMO+ members are automatically entered to win. No extra steps. Just sign up, save money on ammo, and you’re in the running for the ultimate adventure vehicle.

JOIN AMMO+ NOW

AMMO+ WELCOME GIFT BONUS

As a thank you for joining AMMO+, we’re throwing in an ammo can as a bonus with your first member purchase.

VIEW ALL AMMO+ PERKS!
Welcome Gift

OUR PAST TRUCK WINNERS

2024 Winner

2024: DAVID K. - SC

2023 Winner

2023: ADAM B. - TN

2022 Winner

2022: MARK S. - MA

2021 Winner

2021: TROY A. - MI

STRAIGHT FROM THE SOURCE:

REAL MEMBERS. REAL FEEDBACK. REAL DEALS.
Joe Guinta, NJ

Joe Guinta, NJ

Total Savings: $1,779 so far!

"I am a frequent shopper the company is aware of my ammo needs and keeps me on a list for desired ammo should that inventory go on sale."

Brad Dunlap, IN

Brad Dunlap, IN

Total Savings: $4,860 so far!

"The cost of the program is something that pays for itself in no time. Check it out, you’ll be glad you did!"

Jay Patel, FL

Jay Patel, FL

Total Savings: $11,912 so far!

"The benefits provided by the membership are worth every penny, and I could not recommend it enough"

PROUDLY BASED IN THE USA

EXPLORE THE ENTIRE ARSENAL

Our product selections cover everything for the Precision Sports Industry. Don’t let someone else snag what you need. Discover our full range of products before they’re gone.

SHOP BULK AMMO


SHIPPING AMMUNITION


Attention Ammunition Buyers You must be 21 years or older to order ammunition. Ammo must ship UPS/FedEx Ground. For safety reasons, we cannot accept returns on ammo. Always, make sure that you use the correct ammunition for your gun. Please check local laws before ordering.


Shipping Estimate Please add the product into your shopping cart to get a shipping estimate
   
Ammo Shipping Zones
Target Sports USA only ships ammo to Contiguous 48 states only. We do not ship ammo to Alaska & Hawaii 
   
Proposition 65 Warning
 This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.p65warnings.ca.gov.

Reviews

221 Customer Review(s)
5 Star
164  (74%)
4 Star
44  (20%)
3 Star
7  (3%)
2 Star
2  (1%)
1 Star
4  (2%)
Please login first to write a review.
Comments and Reviews on Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Awesome rounds from Sellier & Bellot. Great service and shipping from TSUSA.
Reviewed by William  M
6/24/2025 8:46:30 PM
Comments and Reviews on Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great ammo at a fair price. No issues with this round from Sellier & Bellot. Thanks TSUSA.
Reviewed by Troy  R
6/18/2025 3:25:28 PM
Comments and Reviews on Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Great suppressed ammunition, no issues with this round from Sellier & Bellot. Thanks TSUSA.
Reviewed by Mark  C
6/18/2025 10:04:57 AM
Comments and Reviews on Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Good reliable ammo but dirty, no issues with this ammo from Sellier & Bellot. Thanks TSUSA.
Reviewed by Robert  V
6/16/2025 7:43:58 PM
Comments and Reviews on Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA
Performancestarstarstarstarstar
Valuestarstarstarstarstar
Qualitystarstarstarstarstar
Good subsonic 300 Blackout rounds from S&B. Functioned pretty well in the Mini 14 300 BO variant and priced fairly. Rounds were noticeably dirty though, and had some failure to feed instances which were easily remedied by re-racking the bolt. Not a dealbreaker but certainly something worth mentioning. FMJ subs seem to have this issue compared to their Open Tip counterparts.
Reviewed by Bryan  P
6/9/2025 10:21:42 AM
1  2  3  4  ..  45  > 

Questions & Answers

Frequently Asked Questions
Question:Any idea when these will be back in stock? - Florentina (01/31/2025)
Response:Florentina, we do not have specific dates when products will be arriving. These are unprecedented times within the ammo industry. On a daily basis, we are still receiving shipments of all types of ammo calibers, however, not nearly enough to fill the demand. You may want to sign up for notifications for when any ammo in this caliber comes back into stock and try a different brand. To sign up for notifications go to My Account > Communication Tab & scroll down to Notify by Caliber. Please note - Prime Members get this alert 3 hours prior to standard customers as a benefit of their paid membership, so we might not have any inventory remaining after the Prime customers get ahold of it. Thank you for visiting TargetSportsUSA.com
Question:I've been waiting for over a year for this ammo. Everyone else seems to have it right now (Palmetto State Armory, Midway USA, Lucky Gunner, even Optics Planet has some!), why don't you guys? Also, I've shelled out for the Ammo+ membership twice and STILL I never get any notifications that this is in stock. And please don't tell me to subscribe again, I already do. - Kevin (04/18/2023)
Response:Kevin, we do not have specific dates when products will be arriving. These are unprecedented times within the ammo industry. On a daily basis, we are still receiving shipments of all types of ammo calibers, however, not nearly enough to fill the demand. Thank you for visiting TargetSportsUSA.com
Question:Hi, Can you tell me when y'all might be getting some more 300 Blackout ammo in? Thank you, Troy - Troy (08/21/2020)
Response:Hello Trpy, As of today we do not have an ETA on this S&B 300 Blackout Ammo and when it will be back in stock. Please sign up to get notified via text or email or both. Thank you for your patience and Thank you for visiting TargetSportsUSA.com
Question:Any estimate on when you might be getting some more of this in stock? - Patrick (08/12/2020)
Response:As of today we do not have an ETA on this 300 Blackout Ammo and when it will be back in stock. Please sign up to get notified via text or email or both. Thank you for your patience and Thank you for visiting TargetSportsUSA.com
Question:Are you expecting a shipment of this ammo or any other subsonic 300blk at any point in the near future? - Colin (07/24/2020)
Response:Yes, 2-3 weeks
Question:Copper or Bi-metal FMJ? - James (06/22/2020)
Response:Hi James. The jacket consists of CuZn10 which is a solid solution strengthened copper alloy containing 10% zinc (brass). Thus mean the jacket is not entirely copper. Thank you for choosing TargetSportsUSA.com
Question:When will this be back in stock? specifically the subsonic version - Nathan (05/05/2020)
Response:As of today we do not have an ETA on this 300 Blackout Ammo and when it will be back in stock. Please sign up to get notified via text or email or both. Thank you for your patience and Thank you for visiting TargetSportsUSA.com
Question:I can not order this item. Something is wrong.thanks - nader (10/10/2018)
Response:Hi Nader, you can always reach us during our business hours and we will be happy to take your order over the phone if you are still having issues ordering this Sellier & Bellot 300 AAC Blackout Ammo 200 Grain Subsonic FMJ ammunition. Thank you for buying bulk 300 Blackout ammo online at TargetSportsUSA.com
Question:Why are these constantly out of stock? I need 1000+ rounds !! - Jason (04/06/2018)
Response:Hi Jason, YES its been a while. Sellier & Bellot 300 AAC Blackout Ammo 200 Grain Subsonic Full Metal Jacket ammunition is imported and we have no idea when the ship will bring some in. I do know that we have tons on order and as soon as it arrives we will get some back in stock. Thank you for buying ammo online at TargetSportsUSA.com

Similar Products

View more from Sellier & Bellot Ammo

View more in RIFLE AMMO

Manufacturer Details

brand

Sellier & Bellot Ammo

Sellier & Bellot Ammo For sale at TargetSportsUSA.com
. Target Sports USA has the entire line of Sellier & Bellot Ammunition for sale online with free shipping on bulk ammo at cheap discount prices. Sellier & Bellot Ammunition is made in Czech Republic and owned by Brazilian Company CBC, and offers a premium quality ammo products at low bargain sale prices. Sellier & Bellot Ammunition manufactures Handgun Ammo, Rifle Ammo, Shotgun Ammo and mostly known for their high quality ammunition including Sellier & Bellot 9mm ammo caliber. 

Target Sports USA has Sellier & Bellot Ammo For Sale in the following popular calibers: 


Sellier & Bellot Handgun Ammo                     Sellier & Bellot Rifle Ammo                     Sellier & Bellot Shotgun Ammo                     Sellier & Bellot Rimfire Ammo                    
       
Sellier & Bellot 9mm Ammo  Sellier & Bellot 300 BO Ammo  Sellier & Bellot 12 Ga Buckshot  Sellier & Bellot 22LR Ammo 
       
Sellier & Bellot 45 ACP Ammo  Sellier & Bellot 308 Ammo  Sellier & Bellot 12 Gauge Slugs
       
Sellier & Bellot 380 Ammo  Sellier & Bellot 7.62x39mm Ammo   
       
Sellier & Bellot 40 S&W Ammo     
       
Sellier & Bellot 38 Special Ammo       
       
Sellier & Bellot 357 Magnum Ammo       




Enjoy free shipping on S&B Ammo when you buy in bulk ammunition quantities at Target Sports USA.

Back To Top
HomeAMMORIFLE AMMO300 AAC BLACKOUT AMMO → Sellier & Bellot 300 AAC Blackout Ammunition 200 Grain Full Metal Jacket Subsonic - SB300BLKSUBA