Cheapest right now
Starline .300 Blackout
.300 Blackout
Casing
Brass
Aggregate confidence: 28%Worst listing freshness: FreshHover for what this means
Retailer comparison (2)
Purchases are completed on third-party retailer websites under their terms. Round Recon does not process payments or verify eligibility. See our User responsibility notice.| Retailer | Price | CPR | Rounds | Stock | Freshness | Last verified | Buy | Watch |
|---|---|---|---|---|---|---|---|---|
Steinel AmmoTrust 0.50 / 1.00 | $4.64 | $0.232/rd | 20 | In stock | Fresh | 6/12/2026, 7:25:33 PM | Buy at Steinel Ammo | |
Centerfire SystemsTrust 0.50 / 1.00 | $36.99 | — | — | In stock | Fresh | 8/13/2026, 7:45:00 AM | Buy at Centerfire Systems |
Price history
- Steinel Ammo
View price history data table
| Retailer | Date observed | Price | Price per round | Stock status |
|---|---|---|---|---|
| Centerfire Systems | 7/20/2026, 7:37:01 AM | $36.99 | — | in_stock |
| Steinel Ammo | 6/12/2026, 7:25:33 PM | $4.64 | $0.232/rd | in_stock |
Product details
- Brand
- Starline
- Caliber
- .300 Blackout
- Case material
- Brass
- JHP
- Jacketed Hollow Point — designed to expand on impact, typical for self-defense.
- FMJ
- Full Metal Jacket — non-expanding round, common for range/training use.
- HP
- Hollow Point — bullet tip designed to expand on impact.
- Brass
- Brass cases are reloadable and corrosion-resistant; the most common case material.
- Steel
- Steel cases are cheaper but not reloadable and can wear extractors over time.
- Reloaded
- Remanufactured ammunition using once-fired brass — usually cheaper, never use in carry guns.
- Subsonic
- Travels below the speed of sound — quieter, often used with suppressors.
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