300 Blackout Ammo Price Tracker

Real-time price tracking across 4 retailers. Updated every 2 hours.

29
Products Tracked
$0.87/rd
Best CPR →
$1.03/rd
Range CPR
$17.36
Cheapest Box →
22
In Stock
2026-05-24
Last Updated
Filter by grain weight: All 110gr 115gr 120gr 124gr 125gr 135gr 145gr 147gr 150gr 190gr 194gr 200gr 208gr 220gr Showing 29 125gr products

300 Blackout by Use Case

Range / FMJ
103¢/rd
best: 87¢/rd
6 in-stock products
Match
183¢/rd
best: 94¢/rd
6 in-stock products

Track 300 Blackout ammo cost per round in real time across 4 retailers. We're monitoring 29 300 Blackout products (19 priced offers with CPR data) with box prices starting at $17.36. The typical cost per round is $1.03, with the best deal at $0.87/round. Broken down by use case: Range / FMJ averages 103¢/rd and Match averages 183¢/rd. Prices are updated every 2 hours. Click any product to see its full price history and set a price drop alert.

300 Blackout Ammo Buying Context

300 Blackout ammo sits in a useful middle lane for AR-pattern rifles: shoppers often compare supersonic range loads, subsonic suppressor loads, and defensive ammunition on the same search. This tracker keeps those .300 Blackout ammo prices together so cost per round and stock signals are easier to compare.

Use this page when you are comparing 300 Blackout ammunition across retailers, then follow the related rifle-caliber hubs below when you want to benchmark it against common alternatives.

300 Blackout Search Questions We Track

300 Blackout Ammo For Sale

300 Blackout listings vary heavily between supers, subs, range loads, and defensive ammo. Use current CPR and use-case labels to compare similar .300 BLK offers instead of only sorting by box price.

  • 300 Blackout ammo
  • .300 Blackout ammo
  • 300 Blackout ammunition

300 Blackout Median Cost Per Round

Frequently Asked Questions

What is a good cost per round for 300 Blackout?

The best cost per round we're currently tracking for 300 Blackout is $0.87/round. A typical CPR across 19 tracked offers is $1.03/round. Prices vary by brand, grain weight, and retailer.

Is 300 Blackout ammo cheap right now?

The typical cost per round for 300 Blackout is $1.03. Check our CPR trend chart above to see if current prices are above or below the 30-day average. Set a price alert to get notified when prices drop.

How do 300 Blackout prices vary by use case?

300 Blackout ammo falls into different price tiers depending on intended use. Range / FMJ averages 103¢/rd (best deal 87¢/rd across 6 products). Match averages 183¢/rd (best deal 94¢/rd across 6 products).

Where can I find the cheapest 300 Blackout ammo?

Based on our real-time tracking across 4 retailers, the cheapest 300 Blackout ammo starting at $17.36/box. We compare prices from Bereli, E-Commerce Arms, GrabAGun, Palmetto State Armory and more.

What should I compare when shopping for 300 Blackout ammo?

Compare cost per round, bullet type, and whether the load is subsonic or supersonic. 300 Blackout ammunition can vary widely by intended use, so a low range-ammo CPR is not always comparable to a defensive or subsonic load.

All 300 Blackout Ammo — Lowest CPR First

Sig Sauer Elite Marksman .300 AAC Blackout Open Tip Match 125 Grain
Sig Sauer Elite Marksman .300 AAC Blackout Open Tip Match 125 Grain
$35.99
Bereli 5 pack sizes Match
Best known CPR: 0.51/rd @ 500 rds
Hot Deal
Winchester Ammo RED300 USA Ready 300Blackout 125gr Open Tip Range 20 Per …
$17.36 0.87/rd
E-Commerce Arms 20 rds Range / FMJ
Hot Deal
Frontier x Hornady 300 Blackout 125 Grain Full Metal Jacket (FMJ) Ammo
Frontier x Hornady 300 Blackout 125 Grain Full Metal Jacket (FMJ) Ammo
$25.99
Bereli 4 pack sizes Range / FMJ
Best known CPR: 0.88/rd @ 200 rds
Prvi Partizan .300 AAC Blackout HPBT 125 gr 20 Rounds Ammunition - PP300B
Prvi Partizan .300 AAC Blackout HPBT 125 gr 20 Rounds Ammunition - …
$18.89 0.94/rd
Palmetto State Armory 20 rds Match
Hot Deal
Frontier Cartridge Rifle Ammo Brass .300 AAC Blackout 150-Rounds 125 Grain FMJ
Frontier Cartridge Rifle Ammo Brass .300 AAC Blackout 150-Rounds 125 Grain FMJ
$147.99 0.99/rd
GrabAGun 150 rds Range / FMJ
Frontier Cartridge Rifle Ammo Brass .300 AAC Blackout 50-Rounds 125 Grain FMJ
Frontier Cartridge Rifle Ammo Brass .300 AAC Blackout 50-Rounds 125 Grain FMJ
$49.79 1.00/rd
GrabAGun 50 rds Range / FMJ
Fiocchi Hyperformance Brass .300 AAC Blackout 125 Grain 25-Rounds SST
Fiocchi Hyperformance Brass .300 AAC Blackout 125 Grain 25-Rounds SST
$26.49 1.06/rd
GrabAGun 25 rds Hunting
FRONTIER 300 BLACKOUT 125GR FMJ 20/2 - No Credit Card Fees - Low, flat rate shipping
FRONTIER 300 BLACKOUT 125GR FMJ 20/2 - No Credit Card Fees - …
$21.35 1.07/rd
E-Commerce Arms 20 rds Range / FMJ
HORNADY FRONTIER 300 BLACKOUT 125GR FMJ 50RD BX 500RD CASE - Flat …
$54.63 1.09/rd
E-Commerce Arms 50 rds Range / FMJ
Hornady American Gunner .300 AAC Blackout 125GR HP 50Rds
$56.09 1.12/rd
GrabAGun 50 rds
Hornady Frontier 300 Blackout Ammo 125 Grain FMJ 150 rds/box - FR402
Hornady Frontier 300 Blackout Ammo 125 Grain FMJ 150 rds/box - FR402
$170.99 1.14/rd
Palmetto State Armory 150 rds Range / FMJ
Above Avg
Sig Sauer Supersonic .300 AAC Blackout 125 Grain 20-Rounds OTM
Sig Sauer Supersonic .300 AAC Blackout 125 Grain 20-Rounds OTM
$25.89 1.29/rd
GrabAGun 20 rds Match
HSM 300BLK3N Game King 300 Blackout 125 gr Pro Hunter 20 Per Box/ 25 Case - No Credit Card Fees - Low, flat rate shipping
HSM 300BLK3N Game King 300 Blackout 125 gr Pro Hunter 20 Per …
$26.17 1.31/rd
E-Commerce Arms 20 rds Hunting
HSM/Hunting Shack Game King 125 Grain Spitzer Brass .300 AAC Blackout / …
$26.19 1.31/rd
GrabAGun 20 rds Hunting
DBLTAP CD 300BLK 125GR SCHP 20/1000 - No Credit Card Fees - …
$26.77 1.34/rd
E-Commerce Arms 20 rds
DBLTAP CD 300BLK 125GR SCHP 20/1000 - Flat Rate Shipping Under 30lbs! …
$26.96 1.35/rd
E-Commerce Arms 20 rds
HSM 300 AAC Blackout 125gr SIERRA SPT Ammunition New Manufactured  20rds - HSM-300BLK-3-N
HSM 300 AAC Blackout 125gr SIERRA SPT Ammunition New Manufactured 20rds - …
$27.99 1.40/rd
Palmetto State Armory 20 rds
Barnes Bullets Precision Match .300 AAC Blackout 125 Grain 20-Rounds OTMBT
Barnes Bullets Precision Match .300 AAC Blackout 125 Grain 20-Rounds OTMBT
$36.69 1.83/rd
GrabAGun 20 rds Match
Barnes Bullets Precision Match .300 AAC Blackout 125 Grain 20-Rounds OTMBT
Barnes Bullets Precision Match .300 AAC Blackout 125 Grain 20-Rounds OTMBT
$36.69 1.83/rd
GrabAGun 20 rds Match
Barnes Precision Match 125 gr OTM-BT 300 Blackout Ammunition 20 Rounds - 30737
Barnes Precision Match 125 gr OTM-BT 300 Blackout Ammunition 20 Rounds - …
$38.49 1.92/rd
Palmetto State Armory 20 rds Match
Remington 300 AAC Blackout 125gr OTM Premier Match Ammunition 20rds - 21503
Remington 300 AAC Blackout 125gr OTM Premier Match Ammunition 20rds - 21503
$41.99 2.10/rd
Palmetto State Armory 20 rds Match
Above Avg
Hornady 300 AAC Blackout 125gr HP American Gunner Rifle Ammunition, 50 Round Box - 80897
Hornady 300 AAC Blackout 125gr HP American Gunner Rifle Ammunition, 50 Round …
$67.99
Palmetto State Armory
Winchester 125gr Open Tip 300 Blackout Ammo, 20rd - USA300BLK
Winchester 125gr Open Tip 300 Blackout Ammo, 20rd - USA300BLK
$13.99 0.70/rd
Palmetto State Armory 20 rds
Out of Stock
Winchester USA White Box .300 AAC Blackout 125 Grain 20-Rounds OTR
Winchester USA White Box .300 AAC Blackout 125 Grain 20-Rounds OTR
$15.99 0.80/rd
GrabAGun 20 rds Range / FMJ
Hot Deal Out of Stock
Sig Sauer Elite Performance Brass .300 AAC Blackout 125-Grain 20-Rounds FMJ
Sig Sauer Elite Performance Brass .300 AAC Blackout 125-Grain 20-Rounds FMJ
$19.29 0.96/rd
GrabAGun 20 rds Range / FMJ
Out of Stock
Hornady Frontier .300 Blackout 125 gr FMJ Ammunition, 20 Rounds - FR400
Hornady Frontier .300 Blackout 125 gr FMJ Ammunition, 20 Rounds - FR400
$21.19 1.06/rd
Palmetto State Armory 20 rds Range / FMJ
Out of Stock
Sig Sauer Elite Match Grade Brass .300 AAC Blackout 125-Grain 20-Rounds OTM
Sig Sauer Elite Match Grade Brass .300 AAC Blackout 125-Grain 20-Rounds OTM
$26.29 1.31/rd
GrabAGun 20 rds Match
Out of Stock
DoubleTap Colt Defense .300 AAC Blackout Ammunition, 20 Rounds Hollow Point 125Gr - 300BLK125CT
DoubleTap Colt Defense .300 AAC Blackout Ammunition, 20 Rounds Hollow Point 125Gr …
$28.79 1.44/rd
Palmetto State Armory 20 rds Self-Defense
Out of Stock
PPU Standard Rifle Ammo .300 AAC Blackout / 7.62 X 35 125GR FMJ
PPU Standard Rifle Ammo .300 AAC Blackout / 7.62 X 35 125GR …
$20.09
GrabAGun Range / FMJ
Out of Stock

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