--- title: "Winchester .300 Blackout 200gr Subsonic Rounds" description: "Subsonic 200-grain .300 AAC Blackout ammo engineered for suppressed firearms to lower report, reduce fouling, and deliver consistent cycling and accuracy." canonical_url: "https://www.kygunco.com/product/288965" meta: author: KYGUNCO "og:description": "Subsonic 200-grain .300 AAC Blackout ammo engineered for suppressed firearms to lower report, reduce fouling, and deliver consistent cycling and accuracy." "og:image": "https://cdn.kygunco.com/assets/products/288965/thumbnail.jpg?v=1748896841" "og:image:height": "500" "og:image:width": "500" "og:title": "Winchester .300 Blackout 200gr Subsonic Rounds" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Ammunition](https://www.kygunco.com/category/ammunition) / [Rifle Ammo](https://www.kygunco.com/category/ammunition/rifle-ammo) / WNC-SUP300BLK-CASE ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/288965/main.jpg?v=1748896841) For illustration purposes only, this image may not be an exact representation of the product. # WINCHESTER AMMO Super Suppressed 300 Blackout 200Gr 1060fps - 200rd Case Subsonic .300 AAC Blackout rounds loaded with 200-grain bullets and brass cases, engineered for use with suppressors to reduce muzzle report and limit barrel/suppressor fouling while maintaining reliable cycling and consistent accuracy for range practice and suppressed shooting. 5.0 ** ** ** ** ** [9 reviews](#reviews) $179.99 --- $0.90 per round ** 5 interest-free payments of **$36** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 288965 Style WNC-SUP300BLK-CASE UPC 020892224490 Condition New Manufacturer [Winchester](https://www.kygunco.com/brand/winchester) Units Per Box 200 Caliber 300 AAC Blackout Super Suppressed ammunition is optimized for firearms equipped with suppressors. Offering clean and reliable performance, the Super Suppressed line is engineered for noise reduction, decreased barrel/suppressor fouling and recoil mitigation. Consistent performace and exceptional accuracy is backed by generations of Winchester legendary excellence. **Consistent Accuracy** Trusted for target and range shooting **Encapsulated Bullet Base** Copper jacket encloses the base of the bullet core to reduce lead fouling in barrels and in suppressors **Optimized for Suppressor Use** Clean and reliable performance in both suppressed and non-suppressed firearms **Reduced Noise Subsonic** Velocities below the speed of sound produce lower decibel levels - Usage: Target & Suppressor - Rounds Per Box: 20 - Rounds Per Case: 200 - Open Tip Range - Made In USA ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 5.0 ** ** ** ** ** 9 reviews ** ** ** ** ** 9 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** Paul Bowling Green, KY Great buy, my go to place for my needs. 11/27/2025 ** ** ** ** ** ** James Loganville, GA Fast shipping. Great transaction. 8/27/2025 ** ** ** ** ** ** Verified Customer Best price i could find for new subsonic 300 blackout, fast and reasonably low cost shipping 8/12/2025 ** ** ** ** ** ** Verified Customer Fast shipping and price is right for .300 BLK subsonic rounds at $0.60/round so I bought 2 cases. Kentucky Gun Co ships in the mfg case box with strong shipping tape over it so it arrived in good condition with no damage. Rounds work well in my 7,5” AR pistol build running a Resonator R2 suppressor. Quiet for subs and runs reliably. Only downfall is that it shoots on the dirty side almost like Winchester white box. Would buy again. 8/3/2025 ** ** ** ** ** ** Jordan Benbrook, TX Fast shipping and item as described. I run these in my 8" Virtus all day long and never have any issues. Good quality and reliable 7/21/2025 ** ** ** ** ** ** Joe Lanark Village, FL Price was fair and delivery was fast. 7/14/2025 ** ** ** ** ** ** Robert Arlington, TN Awesome ammo and ridiculously inexpensive! Lightning fast shipping!! I would highly recommend! 6/28/2025 ** ** ** ** ** ** Robert Marengo, IN I received an email on a sale for this ammo, which put it about as cheap as I could buy brass to reload, so now I can shoot this up, and still have the brass economically. Great price, fast shipping! 6/24/2025 ** ** ** ** ** ** Verified Customer Amazing prices! Amazing service! Super fast and reasonable shipping! Thanks KY GUN CO !!!!!! 6/18/2025 ** ** ** ** ** ## Shop 300 AAC Blackout Firearms ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/winchester-ammo-super-suppressed-300-blackout-200gr-1060fps-200rd-case#webpage","@type":"WebPage","description":"Subsonic 200-grain .300 AAC Blackout ammo engineered for suppressed firearms to lower report, reduce fouling, and deliver consistent cycling and accuracy.","name":"Winchester .300 Blackout 200gr Subsonic 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Rounds work well in my 7,5” AR pistol build running a Resonator R2 suppressor. Quiet for subs and runs reliably. Only downfall is that it shoots on the dirty side almost like Winchester white box. Would buy again.","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-08-03T22:11:10.3183064+00:00","author":{"@type":"Person","name":"Verified Customer"},"inLanguage":"en"},{"@type":"Review","name":"Review for WINCHESTER AMMO Super Suppressed 300 Blackout 200Gr 1060fps - 200rd Case","reviewBody":"Fast shipping and item as described. I run these in my 8\" Virtus all day long and never have any issues. Good quality and reliable","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-07-21T17:52:01.523896+00:00","author":{"@type":"Person","name":"Jordan"},"inLanguage":"en"},{"@type":"Review","name":"Great experience.","reviewBody":"Price was fair and delivery was fast.","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-07-14T15:03:13.0879174+00:00","author":{"@type":"Person","name":"Joe"},"inLanguage":"en"},{"@type":"Review","name":"Review for WINCHESTER AMMO Super Suppressed 300 Blackout 200Gr 1060fps - 200rd Case","reviewBody":"Awesome ammo and ridiculously inexpensive! Lightning fast shipping!! I would highly recommend!","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-06-28T03:23:56.3533712+00:00","author":{"@type":"Person","name":"Robert"},"inLanguage":"en"},{"@type":"Review","name":"Review for WINCHESTER AMMO Super Suppressed 300 Blackout 200Gr 1060fps - 200rd Case","reviewBody":"I received an email on a sale for this ammo, which put it about as cheap as I could buy brass to reload, so now I can shoot this up, and still have the brass economically. Great price, fast shipping!","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-06-24T10:58:16.7648003+00:00","author":{"@type":"Person","name":"Robert"},"inLanguage":"en"},{"@type":"Review","name":"Review for WINCHESTER AMMO Super Suppressed 300 Blackout 200Gr 1060fps - 200rd Case","reviewBody":"Amazing prices! Amazing service! Super fast and reasonable shipping! Thanks KY GUN CO !!!!!!","reviewRating":{"@type":"Rating","bestRating":5,"worstRating":1,"ratingValue":5},"datePublished":"2025-06-18T16:30:23.2342673+00:00","author":{"@type":"Person","name":"Verified Customer"},"inLanguage":"en"}]},{"@id":"https://www.kygunco.com/product/winchester-ammo-super-suppressed-300-blackout-200gr-1060fps-200rd-case#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://www.kygunco.com","position":1},{"@type":"ListItem","name":"Ammunition","item":"https://www.kygunco.com/category/ammunition","position":2},{"@type":"ListItem","name":"Rifle Ammo","item":"https://www.kygunco.com/category/ammunition/rifle-ammo","position":3},{"@type":"ListItem","name":"WNC-SUP300BLK-CASE","position":4}]},{"@id":"https://www.kygunco.com/#/schema/image/1","@type":"ImageObject","contentUrl":"https://cdn.kygunco.com/assets/backdrops/facade.jpg","inLanguage":"en","url":"https://cdn.kygunco.com/assets/backdrops/facade.jpg"}]} ``` ## Sitemap See the full [sitemap](https://www.kygunco.com/sitemap.md) for all pages.