The business end of a Surefire brake on our 308 rifle after installation is complete. Alternatively, the shoulder can be cut back to provide indexing. Critical: the bore must be checked to ensure that a fired projectile will not contact the brake.įinal indexing of the brake is accomplished with the supplied shims (.003″.
The threads are completed to the shoulder by hand. The die is removed from the tail stock die holder and placed in a die stock. The threads were stopped short of the shoulder on the lathe. Note: please ignore the oil on the camera lens.
The threads are now aligned with the bore. The lathe is reversed and the die removed. With light pressure applied to the tail stock, the “inching” button is pressed on the lathe and the cut is made. The tail stock will not be locked in place. The tail stock is pushed against the muzzle. A 5/8-24 die is held in a die holder in the tail stock and the lathe’s ways are lubricated with oil. Current best practices would suggest single pointing the threads on the lathe. This was done to show various methods one can use to accomplish the same results. mill-certified heat-treated stainless steel. The SureFire Muzzle Brake features offset porting which delivers greatly reduced recoil impulse and muzzle rise, so the weapon tracks straight back to keep you on target for faster shot-to-shot recovery. Instead, we used the die and tail stock method. Surefire Suppressor Adapter Muzzle Brake 6.5mm, 5/8x24 Threads. NOTE: On this installation we did not cut the threads on the lathe- which would have been a better method. The long tenon allows the brake to slide into position, the short tenon will be threaded. The threaded portion of the muzzle will be. Since the barrel is tapered, cutting towards the headstock can possibly push the barrel out of alignment. The machine set up gauge is used to level the high speed steel cutter to the center line of the barrel. Note: our barrel wasn’t long enough to use the outboard spider. A crown saver protects the end of the live center from damaging the crown. The barrel is mounted in our lathe’s spider.
For many bolt action rifles, this requires that the muzzle be turned down behind the threads. 775″ in diameter to fit under the device. The design of the brake requires that 2.15″ of the barrel behind the threads to be no more then. The Surefire MB762SSAL/RE muzzle brake provides excellent reduction in muzzle flip as well as the ability to mount one of their suppressors. We decided to add a Surefire muzzle brake to our custom 308 Remington 700 lightweight tactical rifle we built in a previous article. 264/6.5mm caliber rifles with 5/8-24 threads.The business end of a Surefire MB762SSAL/RE brake on our 308 rifle.īolt action rifle muzzle brake installation: Installing a Surefire MB762SSAL/RE SPECS: HTSR 416 stainless steel, HRC 28-32, DLC finish - matte black. Accu-Washer Muzzle Alignment System advised for installation. Wrench flats on top and bottom for easy installation and removal. Available in either an ultra wear resistant DLC (Diamond-Like Carbon) matte black finish, or stainless steel in-the-white, satin finish. Precision CNC machined from high strength HTSR 400-series stainless steel bar for superior heat and corrosion resistance. Computer FEA optimized for maximum strength to weight ratio and impact survivability. High tolerance class-3 threads machined in same operation as bore aperture ensures perfect concentricity this combined with a progressively decreasing baffle thickness minimizes bullet flight disturbance resulting in less yaw, higher BC, and improved accuracy. A massive symmetrical blast baffle, combined with two compensated front baffles, redirect gas to the sides and upward delivering unparalleled recoil reduction while also minimizing muzzle rise and ground disturbance. Designed for tactical applications that require minimal dust signature. Superior Recoil Management With Minimal Dust Signature.
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