SSS.6.124 - Research Supplement: Subsonic 300 BLK Suppression Performance - Flow-Through vs. Forward Flux vs. SURGE BYPASS vs. Conventional Silencers. Head-to-Head Comparisons (Article Preview)

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SSS.6.124 - Research Supplement: Subsonic 300 BLK Suppression Performance - Flow-Through vs. Forward Flux vs. SURGE BYPASS vs. Conventional Silencers. Head-to-Head Comparisons (Article Preview)

Five 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. The silencers in this group were selected for their relevance to the three rifle silencer technology classes: Conventional, High Flow Rate, and Hybrid Design. The five silencers behave differently, even despite some of them exhibiting similar performance quantified by the PEW Science Suppression Rating. Their subsonic 300 BLK suppression performance provides an excellent case study comparing current rifle silencer technology.

Many silencers exhibit significantly different performance when using supersonic and subsonic ammunition. In general, increasing gross flow rate through a silencer can significantly reduce signature suppression performance, particularly with subsonic ammunition.  However, certain designs may significantly outperform others in this regard.  Quantifying these performance differentials is essential for characterizing hazards to the system operator and bystanders.

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 five 30 caliber rifle silencers that use various technologies to suppress subsonic 300 BLK sound signatures. Both FRP and total sound signature suppression regimes are examined. This supplement is part of ongoing PEW Science small arm weapon system sound signature research. PEW Science thanks you for your support.

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SSS.6.64 - HUXWRX HX-QD 556k and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

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SSS.6.64 - HUXWRX HX-QD 556k and the MK18 5.56x45mm Short Barrel Automatic AR15 Rifle (Free Version)

The HUXWRX HX-QD 556k is a compact 5.56mm machine gun rated rifle silencer that exhibits class-leading back pressure reduction with a notable balance of sound signature suppression performance that is competitive with many silencers on the market. It should be noted that the HUXWRX / OSS design requires gas path length to achieve efficacy. As a result, this “k” silencer is similar in overall length to some full-size dedicated 5.56mm rifle silencers on the market.

In this review, the HX-QD 556k performance metrics depend upon suppressing a supersonic centerfire rifle cartridge on a short barrel gas-operated rifle, which is an incredibly difficult task. How would the HX-QD 556 perform on your AR15 short barrel rifle?

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SSS.6.45 - OSS HX-QD 762 and the Q mini FIX 300 BLK Subsonic (Free Version)

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SSS.6.45 - OSS HX-QD 762 and the Q mini FIX 300 BLK Subsonic (Free Version)

The OSS HX-QD 762 is a mid-size, relatively heavy, and durable .30 rifle silencer that exhibits class-leading back pressure reduction with a notable balance of sound signature suppression performance in the supersonic flow regime, but relatively inefficient sound signature suppression performance in the subsonic flow regime.

Users should note that most silencers exhibit significantly different sound suppression characteristics in different flow velocity and pressure regimes, i.e. when suppressing supersonic vs. subsonic cartridges. This sound suppression performance variation, across different flow regimes, is more pronounced with silencers possessing high flow rate (low back pressure) characteristics, like the HX-QD 762. How would the HX-QD 762 perform on your personal defense weapon?

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SSS.6.42 - Research Supplement: Balancing Back Pressure and Suppression Rating (Article Preview)

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SSS.6.42 - Research Supplement: Balancing Back Pressure and Suppression Rating (Article Preview)

Four 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. 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. These silencers all possess characteristics allowing them to keep flow restriction to a minimum while still keeping sound suppression above a minimum threshold.

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. This supplement is part of ongoing PEW Science small arm weapon system sound signature research.

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SSS.6.41 - OSS HX-QD 762 and the Savage Model 10 PC .308 (Free Version)

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SSS.6.41 - OSS HX-QD 762 and the Savage Model 10 PC .308 (Free Version)

The OSS HX-QD 762 is a mid-size, relatively heavy, and durable .30 rifle silencer that exhibits class-leading back pressure reduction with a notable balance of sound signature suppression performance in the supersonic flow regime. Users should note that most silencers exhibit significantly different sound suppression characteristics in different flow velocity regimes, i.e. when suppressing supersonic vs. subsonic cartridges. This sound suppression performance variation, across different flow regimes, is more pronounced with silencers possessing high flow rate (low back pressure) characteristics, like the HX-QD 762.

In this review, the HX-QD 762 performance metrics depend upon suppressing a supersonic centerfire rifle cartridge; no easy task. How would the silencer perform on your .308 deer rifle?

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