338 SPECTRE - 1300 DUFFYS BUILT 12' stainless. With a good silencer, a subsonic round is quiet. It shares the same rim size with the new Remington 6.8 x 43mm SPC cartridge, allowing use of OEM bolts in this caliber. The upper can be used on any AR-15 lower, using 6.8 AR mags, and can be silenced with any 9mm pistol silencer. The cartridge is intended to fill the gap between traditional pistol caliber cartridges and existing rifle cartridges used in this weapon system. 338 Spectre cartridge was developed specifically for the AR-15 family of gas-operated, detachable-box magazine-fed firearms. Marty ter Weeme of Teppo Jutsu Co LLC.The cartridge has a wide array of applications, including small to medium game hunting, match target, suppressed sniper shooting and forcible entry.Like many new calibers, the. There have been a few new calibers designed for this type of duty and the 338 Spectre is one of them, with a 300 grain projectile traveling at below sonic speed. The idea was to use a shorter barrel version of the AR-15 platform with many smaller pistol calibers, or smaller rifle calibers loaded to sub-sonic velocities. 338 SPECTRE - 1200 16' Upper on Colt Receiver - 1895 What type of velocity can. 338 SPECTRE - 1300 DUFFY'S BUILT 12' stainless. In an effort to develop cartridges for forcible entry and other shorter range combat operations many ideas have come up for a cartridge that will disable a combatant without taking out the neighborhood with an over-powering caliber that works well on the battlefield at more the 100 yards. The upper can be used on any AR-15 lower, using 6.8 AR mags, and can be silenced with any 9mm pistol silencer. To get good supersonic performance along with subsonic in 338, then you would want either the 338 Whisper or 338 Federal. The 338 Federal is made to use with the DPMS 308 or AR-10 platform. Not to be confined to the AR platform, the 338 Spectre can be chambered in single shot rifles and pistols as well as bolt-action rifles. Suppressors such as this are much cheaper than the heavy duty suppressors intended for 338 Lapua Magnum.

using new brass cases with “SBR 338 SPECTRE” Head Stamp and loaded with a “SUB-SONIC” 300 Grain elongated MGJHP, ( Match Grade Jacketed Hollow Point) Projectile.įor more versions of this caliber see below. The 338 Spectre is made to use with the AR-15 platform. For the subsonic loading, a 9mm pistol suppressor will suffice to keep it quiet. 338 Spectre factory produced by SBR of the U.S.A.

338 spectre subsonic