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METRIC SPORTING 8mm UP TO 8.99mm /
8.6 BLACKOUT
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METRIC SPORTING 8mm UP TO 8.99mm
8.6 BLACKOUT
| In the cabinet | METRIC SPORTING 8mm UP TO 8.99mm · 9 images |
Reading the headstamp
12 o'clockMaker's name or factory code
6 o'clockCalibre or year of manufacture
CentrePrimer — Berdan or Boxer, and any seal colour
Research notes
The 8.6 Blackout was created by Kevin Brittingham from Q LLC and is based on a shortened and necked up 6.5 Creedmoor case to facilitate correct seating and feeding of the long, high-ballistic-coefficient bullets that provide maximum subsonic power from an AR-10 platform. The 8.6 BLK utilizes a 30-degree shoulder.
Provenance
2024Catalogued in the collection
2025Record last revised · 2025-10-04
Same drawer
