8.6 Blackout Bolt Action Barrel Premium Stainless

What is 8.6 Blackout

8.6 BLK was developed by Kevin Brittingham and his team at Q. It is often referred to as 300 BLKs big brother and its easy to see why. What 300BLK provided to the AR-15 platform, 8.6 Blackout does for AR-10’s. The parent case being 6.5 Creedmoor, 8.6BLK is trimmed down and necked up for a .338 projectile. Heavier mass means more energy transfer on target. Barrels are being run with a fast 1:3 twist, creating devastating terminal performance. Although 8.6BLK is larger than its 300BLK brother.

The Importance of the 1:3 Twist Rate

For these 8.6 Blackout ammunition, the barrels are produced by Mos-tek Firearms.
By no means are these barrels your typical rifle barrel.
It can be difficult to design and produce them, but Mos-tek Firearms has boldly taken on the challenge.
The 8.6 Blackout barrels have a 1:3 twist rate to appropriately stabilize the long and hefty 300-grain subsonic bullets!

Accordingly, the round rotates completely every three inches of barrel length.
These new barrels’ bores resemble internal bolt or screw threads more than rifling.
This ground-breaking 1:3 twist significantly increases the huge 8.6 blackout round’s energy on target.

Traditionally, energy on target has primarily been an issue.

 

 

 

416 R Stainless

5 R rifling

375 Raptor is a great short action / AR-10-length cartridge for firing both high BC, supersonic hunting and target shooting projectiles as well as heavy, accurate subsonic projectiles.  The .375 bore provides amazing performance from short barrels and spot-on results when suppressed.

These 8.6 barrels loadings were created using a Q Fix rifle equipped with a Q Pork Chop Silencer and a 12′′ Faxon 1:3 twist barrel.

1:3 twist rate

improved stability of large, lengthy subsonic rounds

improved projectile expansion

transfers the sound and flash’s energy back to the bullet’s spin.

For the AR10 DPMS Gen 1 Pattern, 875 gas block journal

Faxon’s Remage-style barrels can be used with a Remage-style nut and an AR-15 armorer’s castle nut wrench.
The nut is also present.

300 grain FMJ bullets made by Mead Industries

Primers for CCI BR2 Large Rifle Bench Rest

At 100 yards, accuracy is consistently 1-2 MOA.

1025 FPS is the average muzzle velocity

The Q Pork Chop Silencer makes the loads exceedingly quiet.

Our chief loader, Jim, carefully handloads all limited release ammunition.

Sometime in 2022, we anticipate having regular commercial quantities of 8.6 Blackout available.