![]() This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations in the aforementioned reviews and to help frame objective loudness comparisons between the four low back pressure silencers in the FRP and total sound signature suppression regime. These silencers all possess characteristics allowing them to keep flow restriction to a minimum while still keeping sound suppression above a minimum threshold. The silencers in this group were selected for their ability to balance sound suppression and flow restriction (back pressure) silencers maximizing their PEW Science Suppression Rating while minimizing their PEW Science Omega Back Pressure Metric. Read Moreįour silencers evaluated by PEW Science are included in this members-only Research Supplement to examine relative First Round Pop (FRP) and overall sound signature suppression performance characteristics. This supplement is part of ongoing PEW Science small arm weapon system sound signature research. ![]() This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations in the aforementioned reviews and to help frame objective loudness comparisons between the four quietest supersonic 308 rifle silencers in the FRP and total sound signature suppression regimes. ![]() Silencers with suppression performance in this range typically have relatively high flow restriction, or back pressure, characterized by a relatively high PEW Science Omega Back Pressure Metric. The silencers in this group were selected for their high sound suppression performance silencers maximizing their PEW Science Suppression Rating on a supersonic centerfire bolt action rifle. Both the FRP and average sound signature suppression regimes are examined. This research supplement is intended to provide more information to PEW Science members with regard to specific sound signature characteristics of the tested configurations in the aforementioned reviews, and to help frame objective loudness comparisons between three silencer configurations exhibiting differing sound suppression performance on the MK18 weapon system. Both silencers induce similar hearing damage risk to the shooter on this weapon platform, on average. The two silencers were selected for their similar average sound suppression performance at the shooter’s ear on the standard PEW Science MK18 test host weapon system. Two silencers evaluated by PEW Science are included in this members-only Research Supplement to examine relative First Round Pop (FRP) and overall sound signature suppression performance characteristics.
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