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We have these on order, and are expecting the first shipment in early spring! Contact us at email@example.com to put a deposit down. Very limited amount available!
The 338 ULTRA SR is our latest high-performance .338 caliber suppressor. It offers class leading suppression levels, a light weight design, and our “SR” quick attach/detach mount that offers locking Secondary Retention. The 338 ULTRA SR will suppress a typical .338 Lapua Magnum bolt-action rifle down to approximately 135-138 dB at the muzzle1, and approximately 124-128 dB at the shooter’s ear 2. It also has very little or no “first round pop” (FRP) in most applications. The 338 ULTRA SR weighs 20.2 ounces including the SR mount mechanism on the suppressor itself. The SR brake weighs 3.6 ounces. It is only compatible with the 338 ULTRA SR series of brakes and flash hiders. The 338 ULTRA SR represents the next step in the evolution of the 338 ULTRA suppressor, and more broadly, the next step for TBAC suppressor mounts. However, the 338 ULTRA SR will NOT replace the regular 338 ULTRA. The 338 ULTRA SR has the same durability, longevity, and performance as the BA-mount 338 ULTRA but includes our new SR (“Secondary Retention”) mount. This mount meets the mil spec represented in the 2017 Advanced Sniper Rifle (ASR) solicitication, and the 338 ULTRA SR is the suppressor that Accuracy International North America chose for their ASR rifle system submission. The main feature of the SR mount is that it acts as a secondary, fail-safe, locking mechanism to retain the suppressor on the muzzle brake in all circumstances, unless explicitly removed on purpose, by hand. It also reduces the number of turns required to mount the suppressor due to a coarser thread and enables “Quick Mount” and “Quick Detach” functionality of the mount. The mount is mechanically very simply and user-level maintenance is possible. HOW OUR MOUNT IS DIFFERENT The SR mount uses a novel paw and cam-path system to ensure that “full lock up” can happen in either of the two adjacent detent slots for any given final shouldering position of the suppressor on the conical brake shoulder. This categorically avoids the “off by one” problem that many “clicky” mounts have. The SR mount has the exact same accuracy, repeatability, and return-to-zero characteristics that all our precision suppressors are known for. This mounting system is covered by US Patent 9,791,234. SAME ULTRA CONSTRUCTION The ULTRA series is constructed of titanium with a fully-welded core. This material and construction provide a great strength to weight ratio. It can take whatever your precision rifle can dish out. The 338 ULTRA SR was designed around .338 Lapua Magnum for maximum flexibility and is rated with that cartridge down to 16″ barrels. The 338 ULTRA SR can easily do multiple-rifle duty on 6mm’s, 6.5’s, .260’s, .308, and most .30 caliber magnums. SPECIAL FEATURES Ionbond DLC coating on 338SR brakes Conical shoulder surface on mount 100% titanium construction of suppressor body 360-degree fully-welded baffle core Magnum rated Rock-Solid POI Repeatability Patented SR brake with full lockup in at least two positions Full 2017 ASR solicitation submission spec. APPLICATION NOTES Minimum barrel lengths: .300 Blackout: 8″ 6.8 SPC, 7.62×39: 10″ .223 Rem, 5.56, 6.5 Grendel: 11.5″ .308 Win: 14.5″ * 7mm RM, 7mm WSM, .300 WSM, .300 WIN MAG: 18″ 7mm RUM, .300 RUM: 20″ .338 Lapua Magnum: 16″ Please contact tech support for: 7mm cal loads exceeding 90 powder grains, .30 cal loads exceeding 100 powder grains For questions about a particular rifle/load combination please contact us. Specifications Caliber .338 caliber, up to .338 Lapua Magnum or .338 RUM Material Titanium Length 11.0 inches. Diameter 1.775 inches (suppressor body); 1.855 inches (rear collar) Weight 20.2 ounces Mount 338 ULTRA SR brake Brake Threads 5/8-24, 3/4-20, 3/4-24, 3/4-28, M18x1.0, M18x1.5 Finish High-Temp CeraKote: Black, OD Green, FDE, Federal “20150” (ie, SURG Brown) Use Precision/Long-range on big-bore magnums that require military-spec retention.