Single edge polygonal rifling. TRACK™ is a proprietary rifling known as Single Edge Polygonal (SEP) available through TRIARC Systems. The patent for this type of rifling (as well as a patent for machinery used to manufacture this rifling) is held by F. This method combines conventional and polygonal rifling shapes to better retain gas, pressure and reduce bullet deformation to further stabilize the projectile for the flight towards its TRACK™ is a proprietary rifling known as Single Edge Polygonal (SEP) available through TRIARC Systems. This innovative rifling design combines the best aspects of standard and polygonal rifling, featuring a unique configuration with a single edge area and a polygonal area that separates the grooves. 5 Creedmoor. The rifling is known as single edge polygonal rifling (SEPR). Key Features: TRACK™ SEP Rifling: Provides improved rifling by combining standard and polygonal riflings. May 21, 2023 · While cut rifling utilizes a single-bladed cutter, a broach is a metal bar with sets of progressive cutting blades in its outer surface corresponding to the number of grooves. In essence, it is a combination of standard and polygonal rifling. 0 – A proprietary design exclusively made by TRIARC Systems through a process they call Single Edge Polygonal (SEP). That gas seal gives polygonal guns an The unique Single Edge Polygonal (SEP) rifling, exclusive to TRIARC, offers shooters the best of both standard and polygonal riflings. All of our gun barrels come with our own proprietary version of rifling similar to what is known as Single Edge Polygonal (SEP). May 11, 2021 · Track 2. J. Feddersen. Between all the various types (Button, 5R, Polygonal, etc. Polygonal rifling uses hills and valleys instead of the sharp-edged lands and grooves. 0 Barrels. 0 barrel is rather unique for AR-15 barrels. Feb 26, 2020 · The type of rifling found on the TRIARC Track 2. Polygonal rifling works by squeezing the bullet instead of cutting into it like traditional rifling. 0 barrel for AR-10, chambered in 6.   To help with this, we’re going to take a deep dive into barrel rifling, from the very basics to all I have barrels that foul badly with conventional rifling, and my PTR 91 with polygonal rifling (very early rifle, I think they use conventional rifling now) looks like it has been painted with copper after only about 20 rounds even though accuracy does not suffer. FJF's dual-patented barrel rifle technology applies a single edge area and a polygonal area separating the grooves to reduce substantial bullet deformation. 4 days ago · TRIARC Systems has launched the TRACK 3. ) and some of the marketing hype surrounding different methods, it can be difficult to decide what is best for you. Aug 31, 2021 · Single edge polygonal rifling (SEP) is a proprietary method created by TRIARC Systems which is utilized to create their highly sought after Track 2. The barrel is available in 16" and 20" lengths, offering superior durability and match-grade accuracy. Constructed from high-grade CrMoV steel, it features a unique Single Edge Polygonal rifling for enhanced bullet stability and minimal deformation. . Polygonal rifling (/ pəˈlɪɡənəl / pə-LIG-ə-nəl) is a type of gun barrel rifling where the traditional sharp-edged "lands and grooves" are replaced by less pronounced "hills and valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile. The primary function of this innovation is to provide an improved rifling for a gun barrel, which has a single edge area and a polygonal area separating the grooves. Experience match-grade ammunition shooting with sub MOA accuracy due to its revolutionary design. Jan 5, 2025 · I have barrels that foul badly with conventional rifling, and my PTR 91 with polygonal rifling (very early rifle, I think they use conventional rifling now) looks like it has been painted with copper after only about 20 rounds even though accuracy does not suffer. This gives the polygonal barrels a tighter gas seal on the projectile. The design combines standard and polygonal rifling shapes which aims to reduce bullet deformation, escaping gases, loss of pressure… all to allow a more symmetrical movement for a projectile or a straighter line Nov 28, 2022 · Rifling of a Barrel: A Complete GuideBarrel rifling can be a confusing subject even for experienced gun owners. Pistols with polygonal rifling have smaller bore diameters than pistols with traditional rifling. vvb nvk ean anp nhm iqu fph yvv qrl yjl rrm laj kwk ezy yed