Cheapest .300 Blackout ammo right now

As of 2026-10-15 00:30 UTC, the cheapest in-stock .300 Blackout ammo we track is "Frontier Cartridge FR410 300 Blackout 208gr Full Metal Jacket Rifle Ammo – 20 round box" at AR15Discounts for 79.8¢ per round ($15.95 for 20 rounds). Prices change often; check the listing before buying.

Top 8 in-stock by cost per round

  1. Frontier Cartridge FR410 300 Blackout 208gr Full Metal Jacket Rifle Ammo – 20 round box — 79.8¢ per round ($15.95 for 20 rounds) at AR15Discounts
  2. Frontier Cartridge FR410 300 Blackout 208gr Full Metal Jacket Rifle Ammo – 20 round box — 89.8¢ per round ($17.95 for 20 rounds) at Dirty Bird Industries
  3. PPU 300BLK FMJ 125GR 20/1000 — 90.0¢ per round ($17.99 for 20 rounds) at Armed in Michigan
  4. WIN 300BLK 150GR PPT 20RD — 100.6¢ per round ($20.13 for 20 rounds) at Armed in Michigan
  5. Sig Sauer Elite Match Grade 300 BLK 125 GR Open Tip Match (OTM) 20 RDS (E300A1) — 116.3¢ per round ($23.27 for 20 rounds) at Freedom Munitions
  6. Barnes Bullets Centerfire Rifle 300 Blackout 120gr JHP 20 Rd - Box or Case - Box - 20 Rounds — 125.0¢ per round ($24.99 for 20 rounds) at Centerfire Systems
  7. Hornady 300 Blackout 135 GR Flex Tip eXpanding (FTX) 20ct (80881) — 131.5¢ per round ($26.31 for 20 rounds) at Freedom Munitions
  8. HSM - 300 Blackout - 208 Grain - A-Max - 20 — 171.5¢ per round ($34.30 for 20 rounds) at True Shot Ammo

FAQ

What is the cheapest .300 Blackout ammo right now?

As of 2026-10-15 00:30 UTC, the cheapest in-stock .300 Blackout ammo we track is "Frontier Cartridge FR410 300 Blackout 208gr Full Metal Jacket Rifle Ammo – 20 round box" at AR15Discounts for 79.8¢ per round ($15.95 for 20 rounds). Prices change often; check the listing before buying.

How many in-stock .300 Blackout ammo listings does ArmorVaultLive compare?

8 in-stock listings with a valid cost per round as of 2026-10-15 00:30 UTC.

Are any of these results paid placements?

No. This list is sorted only by price. Paid featured placements elsewhere on ArmorVaultLive are always labeled Sponsored.

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