300 Blackout Ammo Price Tracker

Real-time price tracking across 5 retailers. Updated every 2 hours.

Products Tracked

$0.83/rd

Best CPR →

$1.48/rd

Median CPR

$22.69

Cheapest Box →

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 28 220gr products

Track 300 Blackout ammo cost per round in real time across 5 retailers. We're monitoring 28 300 Blackout products (16 priced offers with CPR data) with box prices starting at $22.69. The typical cost per round is $1.48, with the best deal at $0.83/round. 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 $0.83/round. A typical CPR across 16 tracked offers is $1.48/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 $1.48. 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.

Where can I find the cheapest 300 Blackout ammo?

Based on our real-time tracking across 5 retailers, the cheapest 300 Blackout ammo starting at $22.69/box. We compare prices from Bereli, Brownells, E-Commerce Arms, GrabAGun 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.

Other Calibers

.17 HMR .22 LR .22 WMR .243 Win .270 Win .300 Win Mag .308 Winchester .338 Lapua .350 Legend .357 Magnum .38 Special .380 ACP .40 S&W .410 Bore .44 Magnum .45 ACP 10mm 12 Gauge 20 Gauge 28 Gauge 30-06 300 Blackout 5.56 / .223 5.7x28mm 6.5 Creedmoor 6.5 Grendel 7.62x39 7.62x51 NATO 7mm Rem Mag 9mm