300 Blackout

Introduced as the 300 Whisper by SSK Industries in 1992 and later submitted to SAAMI as the 300 Blackout by Kevin Brittingham of former AAC fame, the 300 Blackout was designed to offer power similar to the 7.62×39 Soviet. 

300 Blackout is characterized by its versatility, allowing to be fired in both supersonic and subsonic while still reliably functioning from the same compact semi-auto platform.

In supersonic form, with proper hunting class projectiles like the 110gr Tac-TX, it’s an effective hunting cartridge out to 300 yards.

The 300 Blk is at home as an urban fighting carbine cartridge because of its inherently efficient case design, allowing for an extremely compact weapon system like the Q Honey Badger and Sig MCX Rattler.

In Subsonic form with Maker Rex expanding projectiles, the 300 Blk is an excellent home defender delivering hearing safe with 45acp energy behind it, and when combined with a suppressor, it becomes a highly effective CQB role weapon system that outperforms the MP5’s 9x19mm in every category.

8.6 Blackout

The 8.6 Blackout was introduced by Q LLC with an extremely fast 1:3 twist rate which effectively increases terminal performance by initiating rapid expansion and extremely twisted cavitation as evidenced by the successful hunts coming back from South Africa and North America.

In supersonic form the 8.6 Blk is easily capable of taking large game within moderate distances offering big-game punch with a twist.

In Subsonic form with a subsonic expander, the 8.6 Blk is proving its terminal effectiveness on medium and larger game animals  beyond 200 yards.  

Due to the extreme twist rate, traditional bullet designs like “cup-and-core” projectiles come apart at supersonic speeds and require bonded or monolithic only options to retain their mass and prevent spinning apart.

Some barrel manufacturers are offering 1:5 twist and even 1:6.5 twist to aid in increasing the accuracy potential. 

338 Spectre

The 338 Spectre was introduced by Teppo Jutsu LLC and is a a step-up from the 300 Blk in terminal performance due to the larger 338cal projectiles this cartridge uses.

The 338 Spectre is capable of 2000 fps with a 165gr Rex projectile producing nearly 1400 ft lbs of energy at the muzzle. When sound suppression is desired, it’s capable of delivering  highly terminal subsonics with 300gr expanders all from the same small-framed AR platform we’ve come to love.