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Brass Kisses .300 AAC Blackout 220gr FMJ subsonic remanufactured ammunition — close-up of 950 FPS suppressor-ready rounds loaded with new CCI primers and copper-jacketed projectiles.
Ghost Kisses

.300 Blackout 220gr Subsonic

300 Blackout · Subsonic · Utah-Built

Born For The Can.

220gr subsonic remanufactured FMJ at 950 FPS — the load the .300 Blackout was invented for. Pair it with a suppressor and hear your bolt cycle, not your muzzle.

16-PT
QC Process
100%
Guaranteed
USA
Utah-Built
★
Veteran-Owned

Why 220gr Subsonic?

The .300 AAC Blackout exists for exactly this load. The cartridge was designed to push a heavy .30-caliber bullet at subsonic speed through a short-barreled, suppressed AR — and do it while cycling reliably. Our 220gr subs run at 950 FPS, well below the sound barrier: no supersonic crack, just the mechanical sound of your action doing its job.

Big, heavy, and quiet — with a 0.398 ballistic coefficient that keeps the round stable and predictable at the ranges subsonic Blackout was built to work.

For Suppressor Users
950 FPS means no sonic boom from muzzle to target. This is the cartridge-and-can combination the Blackout was engineered around.
For SBRs & AR Pistols
Blackout burns its powder in short barrels — you get full performance from 7.5"–10.5" builds where 5.56 gives up velocity and flash.
For Quiet Range Days
Suppressed subsonic Blackout is about as quiet as centerfire rifle shooting gets. Neighbors stay happy, ears stay fresh.
For Volume Subsonic Training
Premium subsonic hunting loads are expensive. Train at the same 220gr weight and trajectory for a fraction of the cost.

Spec Snapshot

CALIBER
.300 AAC Blackout
BULLET
220gr FMJ
VELOCITY
950 FPS — Subsonic
CONDITION
Remanufactured
PRIMER / POWDER
CCI · Hodgdon
BALLISTIC COEFFICIENT
0.398

Loaded to S.A.A.M.I. specifications on every batch. True subsonic by design.

Choose Your Round Count

Pick a count above — 50 rounds for a suppressed session, 500 to keep the can fed all season, 10,000 to stop thinking about ammo for a year. Free shipping kicks in at 250 rounds and stays free all the way up.

Free Shipping Threshold
250 Rounds & Up — Ships Free

How We Build It

16-point QC. Every round. No exceptions.

Every Brass Kisses 220gr cartridge starts as once-fired brass that gets treated like it matters — because it does:

  1. Inspected for splits, cracks, and defects
  2. Cleaned and pressure-tested on automated Scharch Range Master systems
  3. Deprimed with flash holes cleared
  4. Primer pockets reamed to accept fresh CCI primers
  5. Acid-washed for surface uniformity
  6. Resized on proprietary Brass Kisses tooling to strict S.A.A.M.I. spec

Then loaded with premium components — new CCI primers, new Hodgdon powder, new 220gr copper-jacketed FMJ projectiles — on Camdex and Ammo Load Mark L rifle presses. Every batch runs through the 16-point quality control before it ships.

Reliable. Unapologetic. 100% Guaranteed.

Common Questions

Is this truly subsonic?
Yes — 950 FPS average velocity, well below the 1,125 FPS speed of sound. No supersonic crack downrange. Through a suppressor, the loudest thing you'll hear is your action cycling.
Will subsonic Blackout cycle in my AR?
Subsonic 300 BLK runs best in rifles set up for it — pistol-length gas systems, and ideally suppressed (the added back-pressure helps cycling). Some unsuppressed or carbine-gas setups may short-stroke with subs; adjustable gas blocks solve it. Bolt guns and single-shots run it without a second thought. Our 100% guarantee covers you either way.
Can I shoot this in my 5.56 / .223 rifle?
NO — never. A .300 Blackout round can chamber in a 5.56/.223 barrel and will cause a catastrophic failure if fired. Keep Blackout mags clearly marked and never mix them with 5.56 mags at the bench. This is the one rule of owning both.
Will this damage my suppressor?
No. The 220gr projectile is copper-jacketed FMJ — the standard for suppressor use — and we don't run unjacketed lead through our line. Reman vs new brass makes no difference to suppressor wear.
Is this good for hunting?
This is FMJ range/training ammo — a non-expanding projectile at subsonic energy. For hogs, deer, or predators, use expanding supersonic loads designed for terminal performance. Use these 220gr subs to train quiet and cheap, then load expanding ammo for the hunt.
How fast does Brass Kisses ship?
Orders typically ship within 7 business days from order placement. Need a status update? Email us at info@brasskisses.com. Small Utah outfit, every order matters.
What about hazmat fees and state restrictions?
Hazmat fees calculate automatically at checkout based on your shipping address. A few states (CA, NY, CT, MA, IL) have ammunition shipping restrictions requiring additional documentation. Checkout flags any restrictions automatically.
— Brass Kisses —

Veteran-owned. Utah-built. Loud on purpose.

We're disrupting an industry that's been recycling the same boring brown boxes since 1952. Our ammo is for shooters who take their training seriously — and refuse to take themselves too seriously.

Kiss My Brass.

Currently on backorder — please allow 30–90 days for fulfillment.

Sold Through Authorized Retailers
Brass Kisses does not sell ammunition directly online. Case-pack and availability information is provided to approved retail and dealer partners.
Find a Retailer Request at My Store

Round Specs

type
ammunition
brand
Brass Kisses
caliber
.300 AAC
grains
220
numrounds
50
condition
remanufactured
casing
New-Manufactured Brass
family
Ghost Kisses
bullettype
Subsonic
usecase
Suppressed
velocity
1,010 fps
SKU
THX-00300220R0000FMJ

Built to Run. Backed to Perform.

Every round is made with match-grade precision, documented quality control, and lot traceability. Reliable performance, every time.

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