They both provide a 90% case fill to aid in tight SDs without having to use some novelty powder like Tinstar or Trail Boss. 338 Razorback is the natural evolution using 10mm Auto brass which can be found anywhere. I'm pretty convinced the smallest powder charge in a longer barrel is going to be the quietest configuration. It's the quietest centerfire subsonic gun I have. I currently shoot 5.7gr of Hornady Longshot in a 190gr 300BO out of a 16' barrel with a TB 338 Ultra. 338 Spectre uses 10mm Magnum brass which is unavailable right now but formed brass is available for $40 a hundred. I'm thinking a 10' - 16' barrel on my SBR'd Origin l. A person can buy dies for both right now. They use large pistol primers which is a welcome change. Both are done with one pass thru a sizing die. Pretty close to 300BO but pushing the same 338 bullets as the 8.6.Īpparently the difference between these two cartridges is which pistol case is used to form brass. Maker has 300gr REX solids for subsonic expansion. But these tiny little 338 cartridges seem like the way to shoot subsonic 338. Double to 3 times as much as I'm shooting now. Twist rate is too fast for supers, has too much case capacity subs, not enough for supers. The 338 spectre has like 44 mag velocity as far as supers go where the 8. I'm pretty convinced the smallest powder charge in a longer barrel is going to be the quietest configuration.Ĩ.6 Blackout seems like a hot mess. I currently shoot 5.7gr of Hornady Longshot in a 190gr 300BO out of a 16' barrel with a TB 338 Ultra. I'm thinking a 10' - 16' barrel on my SBR'd Origin l.

I only care about subsonic (if you want to talk supers GTFO). On the other hand, we feel that 'caliber interchangeability' offers the greatest flexibility, and our weapons designs are specifically geared towards this concept.Anyone play with these? I'm 98% about to buy a 1:6.5'. Our ammunition designs are intended to offer the greatest amount of firepower feasible from standard weapons while increasing the types of applications for which they can be used. Our philosophy revolves around two main aspects: firepower and flexibility. While our main focus here at Teppo Jutsu is on the development of new cartridges for existing firearms platforms, we also offer some unique designs for expanding the operational envelope of well-established small arms. In today's world, this art has found new following with several new warrior classes: the hunter, the bench-rest shooter, the law enforcement professional, and last but not least, the true descendant of the ancient 'Teppo-ka', the The 338 spectre has like 44 mag velocity as far as supers go where the 8.6 has 308 (16') velocity. This latter included such skills as weapons retention, striking with the rifle as a blunt weapon, and even the use of the bayonet (Juken Making another AR15 platform caliber to compete w/ 300BLK is less likely to see adoption vs being able to sell something as 'The 300BLK of the AR10'. Similar to the other weapons employed,įor the Samurai this art encompassed all aspects of the rifle as a weapon: achieving accuracy, proper cleaning and maintenance, rifle and ammunition design and development, as well as using the rifle in Close Quarters Combat. The 338 specter would work with 223 stuff and wouldnt need a AR10. We were thinking up wildcat cartridges for suppressed stuff and thought long and hard about 338 federal but decided against it. In fact a few months ago I was talking with Alton about it. With all their weapons arts, were quite the skilled I even have a new replacement plastic lower needing a 22 upper. Teppo Jutsu refers to the 'art of the rifle', a warrior art practiced in feudal Japan by the Samurai.Ĭontrary to popular belief, the Samurai did use firearms and as

338 spectre barrels