Caliber price index
.300BLK ammo price tracker
Monthly cost-per-round (CPR) summary across tracked retailers. Factual reporting only — empty months are shown plainly.
Headline CPR for May 2026
$1.02 per round
Median across 33 reported listings.
No prior month available for comparison.
Reference configuration: 110–150gr brass FMJ/OTM — .300BLK supersonic only.
12-month headline CPR
Each point is the median headline CPR for that month.
Sub-segments this month
| Segment | Median CPR | Sample count |
|---|---|---|
| 110–125gr brass FMJ | $1.02 per round | 13 |
Current low CPR by retailer
- 1.Adventure Gear South$0.03 per round View listing
- 2.Outdoor Limited$0.60 per round View listing
- 3.AE Ammo$0.70 per round View listing
- 4.SGAmmo$0.74 per round View listing
- 5.Lucky Gunner$0.75 per round View listing
Data current as of 2026-05-27T23:43:25.927834+00:00.
Methodology
The headline CPR is computed against a fixed reference configuration (grain band, casing, bullet type) chosen to represent the range/practice market for this caliber. Sub-segment rows report narrower slices of the same listing pool and are published only when sample counts are sufficient. Calibers without a headline this month are omitted entirely rather than substituted with placeholder values.
History coverage: 2026-05 through 2026-05.