Owner's Manual - Read before
Telescopic Reflex Suppressor T8 Scout
The rifle caliber telescopic Reflex Suppressor is a device developed for hearing protection for full power cartridges. It diminishes superbly the environmental noise attacks and risks of hearing deterioration. The T8 Scout suppressor is today the worlds most produced rifle suppressor. For the shooter its noise-killing effect equals best hearing muffs. T8 Scout and its shorter version T4 Ranger are the most widely used suppressors for hunting and accuracy rifles. The hunters as well as their dogs are efficiently safeguarded against hearing losses.
Construction: Because of it's telescopic layout most of the suppressor body is behind the muzzle, and the suppressor supports itself from two points around the barrel. Disconnectable barrel bushing at the back of the suppressor enables using the same suppressor on separate rifles with barrel diameters up to 22.5 mm. Telescopic mounting makes a very rigid mounting, and a Telescopic Reflex Suppressor withstands shooting even a few turns loose, which will regularly damage traditional forward mounting suppressors. Reflex Suppressor is a wipeless design, so it does not reduce bullet velocity. Because of its sturdy construction it can be used also as wet. For details about wet suppressor techniques and absorbing substances see Alan C. Paulson's book: Silencer History and Performance, volume 1 (Paladdin Press).
Dimensions and calibers: Telescopic Reflex Suppressors outside diameter is 50.5 mm (2"). They come in two standard lengths: T4 Ranger with four suppressing baffles extends the rifle by only 60 mm or 2 1/2". Short T4 Ranger is commonly used in .223 rifle caliber class. Longer T8 Scout with eight baffles extends the rifle by 98 mm or less than 4", and it is commonly used in .308 or heavier calibers. A special reinforced model T8M is for magnum rifle calibers. Reflex Suppressors are available with four different bullet hole diameters in baffles, the largest being for .458 Magnum. Separate larger Reflex Suppressor models are available for some .50 BMG rifles.
Performance: The T8 Scout drops the peak noise level of full-power .308 Win cartridges typically from 157 dB down to 135 dB, which is clearly under the recommended max. peak level in EC and US standards of 140 dB and one of the very lowest shooter's noise levels measured with .308 high velocity ammunition. Please remark that the risks of hearing injuries are not totally avoided even below the 140 dB risk level if one is shooting in indoor ranges prone to echoing or firing hundreds of shots weekly. Combined use of hearing protectors and a suppressor is recommended whenever that is possible because only then centerfire rifle noise levels are dropped considerably below the noise level of a .22 rifle that can be regarded as almost riskless.
Bullet noise: When using a suppressor with normal high velocity ammunition the sound in front of the weapon is not removed, but the noise towards the shooter is brought down enough to be considered safe for occasional shooting with unprotected hearing. Thus in hunting circumstances the game hears the shot and escapes the shooter like with unsuppressed weapons. The noise in front of a suppressed firearm is due to the fact that the noise of a bullet exceeding the speed of sound (sonic barrier or Mach 1) cannot be removed with any suppressor. Only bullets traveling slower than the speed of sound (bullet velocity abt. 300 m/s), known as subsonics will remove that noise. However, subsonics have far too low energy level for practical hunting and they are not even allowed for hunting in most countries. Their range is also very short, as the trajectory becomes very curved after 50 meters. If using subsonic cartridges please also pay attention to adequate rifling twist declared in chapter Rifling twist with subsonic ammo (below).
Accuracy: When properly mounted, a suppressor usually does not increase spread of impacts. Instead, it may even tighten the group. Additional weight on the barrel shifts the place of the group center, but that displacement is easily corrected by aiming off. Extent of displacement is usually less than one MIL or four Minutes Of Angle (<10 centimeters at 100 meters), depending on type of rifle and ammo. More extensive off-aiming or sight adjustment may be needed when using subsonic cartridges because of their slow initial velocity and curved trajectory. With self-loading rifles low powered subsonics are usually unable to eject and feed. If mechanical noise of action is to be avoided, it is advisable to keep possible gas port valve closed even when shooting with full-power cartridges.
Rifling twist with subsonic ammo: Using custom-loaded 7.62 x 51 mm /.308 subsonic rounds (muzzle velocity ca. 300 m/s or 1000 fps) the noise of the shot is not very much louder than the sound of a firing hitting an empty chamber. However, these loadings require a 254 mm or 10" twist of rifling to stabilize heavier bullets than 9.7 g or 150 gr. in .30 caliber class. Lighter bullets will be stabilized also in 305 mm or 12" twist. Do not shoot with unstable ammo, because they may graze or even damage the baffles of a suppressor!
Tightening the suppressor on muzzle: When winding the Telescopic Reflex Suppressor on your rifle tighten it only moderately. It is advisable to use only as much force as realized with fingertips of one hand. Do not overtighten! Overtightening may result to excess shift of group or loss of accuracy. It is a good habit to tighten the suppressor always and repeatedly to same finger felt tightness to ensure optimum accuracy and to keep the same point of aim.
Maintenance: Reflex Suppressor is a practically maintenance-free device. Normal fouling from powder and primers do not have effect on its functioning. Loose solid impurities like powder grains and carbon chips are easy to remove by shaking the suppressor, while keeping it vertically, front end downwards. Compressed air may be used for cleaning and gun oil for preserving, but washing with liquids or solvents is unadvisable. Remove the suppressor or leave the action of the rifle open after a shooting session. This helps to avoid corrosion by letting steam condensation from powder gas to evaporate away.
Please observe: It is to be emphasized that protecting the hearing depends on everyones own precautions and activity; suppressors offer means to diminish the risks of hearing damage. The manufacturer cannot be held responsible in any event or circumstances for any hearing injuries as the possibility to have control over the use of product does not exist. Appropriately mounted suppressor, when used according to normal shooting and gun handling precautions, delivers noise attenuation that helps bring down risks of hearing injuries.
Muzzle brake effect: Reflex Suppressor is a highly efficient muzzle brake, due to abrupt reflection or blowback of muzzle blast in the first expansion chamber. The threading for a suppressor also serves for mounting a separate muzzle brake. Attention! The devices serving only as muzzle brakes are not recommended, as they increase essentially the shooter's noise level! The peak noise level to shooter may go up from abt. 157 dB to up to abt.167 dB with a .308 Win rifle if equipped with a muzzle brake. Such a noise level can cause permanent damage to unprotected hearing even with single shots!
Mounting is made by the manufacturer or by a competent gunsmith. As the suppressor extends telescopically backwards from the muzzle and around the barrel, the front sight must be removed. A M15x1, M17x1 or M14x1 thread with centering sleeve is cut on the muzzle in a lathe; for details see separate mounting instruction. Other threads are available by request. Telescopic suppressors do not mount to guns having a long tubular magazine or full stock. In such cases, the forward mounting Reflex Suppressor R12 or KRS may be used.
- Do not shoot shotshells, unstable projectiles or discarding sabot bullets through a suppressor, as they may damage it.
- With self-loading rifles all suppressors tend to increase powder gas blowback through the action opening after the shot. With rifles having this tendency, use shooting goggles to prevent powder particles getting in your eyes.
The Reflex Suppressor T4 Ranger or T8 Scout accessories:
- Standard: A thread shield nut for M15x1, M17x1 or M14x1 muzzle thread for unsuppressed use of the rifle.
- By request: If mounting is not done by manufacturer, a jig for centering the barrel bushing nut in a three-jaw chuck of a lathe, to enlarge the bushing aperture to barrel diameter.
- By request: Extra barrel bushings for mounting one suppressor to separate rifles.
Mounting instruction sheet similar to above
follows with the suppressor. If the rifle can not be fastened to the three jaw chuck of
the lathe from the position of suppressor back end, the rifle is fastened from the back of
its receiver and centered by its barrel. It is important to make sure the muzzle is
centered for thread cutting against a rotating conical support of the lathe. Unsupported
threading will lead to poor suppressor aligning and bullet grazing baffles. A
careful gunsmith will grind the muzzle end of the rifling in a lathe with a fine hand-held
stone to 45 degrees of angle after cutting muzzle thread. The muzzle finishing is done to
remove any marks of the support from the muzzle to preserve the accuracy of the rifle.
Click to enlarge drawing!
Suppressors for Rifles
Photo of a custom built BR Integral rifle with a Telescopic Reflex Suppressor.
Rifle Reflex Suppressors on
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