Wyoming 300 BlackOut 220gr Subsonic FMJ Rifle Ammunition

Designed for suppressed shooting and optimized for low-noise applications, the Wyoming 300 BlackOut 220gr Subsonic FMJ Rifle Ammunition delivers exceptional performance for tactical, training, and recreational use. With clean-burning powder and a heavy 220-grain full metal jacket projectile, this subsonic round ensures smooth feeding, reduced report, and reliable accuracy—especially when paired with a suppressor.

Key Features:

• Caliber: 300 AAC BlackOut (300 BLK)
  Perfect for use in AR-15 platforms and other 300 BlackOut chambered rifles and pistols.

• Bullet Weight: 220 Grain
  Heavy subsonic load optimized for suppressed fire with excellent ballistic stability.

• Bullet Type: Full Metal Jacket (FMJ)
  Non-expanding design offers deep penetration and consistent flight path for training and target shooting.

• Subsonic Velocity
  Engineered to stay below the speed of sound (~1050 fps), minimizing sound signature and increasing suppressor efficiency.

• Reliable Ignition & Cycling
  Consistent powder charge and primer reliability ensure smooth cycling in semi-auto firearms, even under suppressed conditions.

• Brass Case Construction
  Reloadable, high-quality brass casings for improved reliability and durability.

• Box Count: Typically 20 rounds per box (check packaging for specifics)

Ideal Use:

• Suppressed shooting

• Tactical training

• Target practice

• Urban or stealth shooting scenarios

Built with attention to detail and shooter needs in mind, the Wyoming 300 BlackOut 220gr Subsonic FMJ is the go-to choice for those who want to shoot quieter without sacrificing reliability. Whether you’re running a suppressed SBR or a bolt-action rifle, this subsonic 300 BLK load delivers quiet confidence with every shot.

Ammunition Shipping Disclaimer:

Federal law mandates that you must be at least 18 years old to purchase rifles, shotguns, and their respective ammunition, and at least 21 years old to purchase all other firearms and ammunition. Ammunition will be shipped via ground service by the carrier of our choice to the contiguous 48 states only.  A street address is required for delivery. There is no option for shipping ammunition to international customers. 

For safety reasons, we do not accept returns on ammunition with no exception. Always make sure you are using the correct ammunition for your firearm.

DNW Outdoors customers in LA, DC, MN, PA, NY, NJ, MA, IL, CT, and CA should check with their local laws for ammunition restrictions before placing an order.

Due to New York State Law requiring a NICS background check at the time of ammunition purchase DNW Outdoors will not be able to sell and ship ammunition to the State of New York. 

Residents of Illinois purchasing ammunition must provide proof of a FOID card via email  at onlinesales1@dnwoutdoors.com with the subject line FOID before ammunition purchased will be shipped.

Residents of New Jersey purchasing ammunition must provide proof of  a FPIC card or New Jersey Handgun permit via email to onlinesales1@dnwoutdoors.com with the subject line of “FPIC” before  the ammunition purchased will be shipped.

Residents of Connecticut purchasing ammunition must provide proof of a Ammunition Eligibility Certificate or Permit to via email to onlinesales1@dnwoutdoors.com with the subject line of “Ammunition Eligibility Certificate”

DNW Outdoors reserves the right to ask for proof of age when buying age restricted items such as ammunition and firearms. No Exceptions.

**WARNING:** This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov