This brake is for 26cal (.264) to 30cal (.308) with 5/8x24 muzzle thread. SLICK AND SLIM...the baby of the bunch, but reduces recoil like nothing in it's class. The WR Ultra Comp is a brake designed for the competitive shooter who needs a balance of all the qualities a muzzle brake should offer - less recoil, jump. blast, minimal ground disturbance in competitive practical, tactical and target applications.
Weight: 55-60g / 1.95-2.0oz (Light weight). - Length: Approx 63mm / 2.48” long. - Dia: Approx 26mm parallel for push-thru shooting. - Porting: 3 progressive CONICAL ports, slight negative angle, with varying port sizes to work gas-against-gas (helps reduce felt blast). - Recoil reduction: Approx 58 to 71% reduction, depending on gas pre-load volume, bullet body length and bullet exit energy. - Vertical jump: Reduced approx 82 to 88% reduced, depending on barrel twist (centrifugal momentum). - Vertical bounce: No additional bounce imposed. Less than nett 1% gas directed vertically vector upward. - Helmholtz resonance: Minimised in-barrel time additional resonance during expelling pre-load gases by 2 step chamber design (minimising additional live fire barrel movement). - Shooter comfort: Considering the amount of brake this provides, comfort is approx equal to a brake twice its size with less recoil reduction. - Use: For competition to minimise recoil AND muzzle blast, stay on target and easy passage of the muzzle through barricades and supports. - Advantages: Balance of brake and blast, slimline for speed and practical movement, lightweight and barrel heat dispersing.