Today’s Topics:

1. Sound Signature Review 6.211 – Dillon DRC308 on the 14.5-in SR-25. Kicking off the SR-25 research progression, the larger brother of the previously evaluated DRC556 is put through its paces on this challenging host. This is the technical discussion to accompany the report published two weeks ago before SHOT show.

a. Intro and recap (00:06:03)

b. DRC308 physical overview (00:07:57)

c. DRC silencer design (00:12:06)

d. Hazard Map Brief 8.1.8 (00:17:26)

e. System performance (00:25:08)

f. Overall thoughts (00:43:33)

2. Sound Signature Review 6.212 – Precision Armament TiTrex 300 on 20-in .308 bolt-action. We haven’t published a bolt-action report since May of last year! Let’s revisit this ubiquitous and useful host platform to examine this highly optimized 3D-printed silencer. The performance is quite interesting! This discussion introduces today’s published report. (00:47:26)

3. Hunted again with the 300 BLK 6.75-in Sig MCX “LVAW!” Less than a week after my previous report to you in which I took a whitetail doe, I took a spike buck in late season with the same ammunition. Some lessons learned to report! (00:55:57)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

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Today’s Topics:

1. Public Research Supplement 6.210 – the 14.5-in 7.62 NATO KAC SR-25 Combat Carbine (CC) as a silencer test host. Semiautomatic 7.62 NATO testing is here. As typical, let’s look at the combustion propagation characteristics of the new host and see what the silencers will have to deal with as they tackle this new suppression challenge! (00:09:07)

2. Sound Signature Review 6.211 – Dillon DRC308 on the 14.5-in SR-25. Kicking off the SR-25 research progression, the larger brother of the previously evaluated DRC556 is put through its paces on this challenging host. In this introduction to today’s report publication, we’ll talk about the general performance and what we may expect going forward with semiauto 7.62 NATO testing, in general. Can the Dillon tame the beast? (00:25:16)

3. Hazard Map Brief 8.1.8 - Dillon DRC308 on the SR-25 7.62x51mm 14.5-in Barrel Automatic Rifle. Boy oh boy. When viewed spatially, how hazardous is the blast overpressure field from a suppressed 7.62 NATO system compared with a 5.56 NATO system? Big brother is here to show you why 7.62 is a different animal. Treat it with respect. (00:36:43)

4. Hunting medium size game with 300 BLK? A lot of you do. I am happy to report that I finally tried it, and it was successful. I’ll give you some of my initial thoughts on using the 6.75-in Sig MCX Rattler LT (LVAW analog) to take whitetail deer and what I would do differently next time, some pros, cons, etc. (00:43:23)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topic:

1. Sound Signature Review 6.209 – Stealth Additive Works Tisha on the 10.3-in 5.56 MK18. What happens when high level engineering combines all the hybrid design principles we’ve been discussing on this podcast for years into a compact silencer design, and additive manufacturing makes it possible to produce? You get things like this. This is the technical discussion to accompany the report published 22-DEC-2025. (00:09:50)

a. Intro and recap (00:10:53)

b. Tisha physical overview (00:13:48)

c. Tisha silencer design (00:31:35)

d. Silencer Hazard Map Brief 8.1.7 (00:50:28)

e. System performance (01:02:20)

f. Overall thoughts (01:20:10)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.209 – Stealth Additive Works Tisha on the 10.3-in 5.56 MK18. What happens when high level engineering combines all the hybrid design principles we’ve been discussing on this podcast for years into a compact silencer design, and additive manufacturing makes it possible to produce? You get things like this. The incredible joy it brings us to show you things like this are possible is the best Christmas gift we could ask for. Let’s introduce today’s publication, at a high level.  Also, Silencer Hazard Map Brief 8.1.7.

a. Intro to the intro (00:08:20)

b. Basic Tisha high level overview (00:15:12)

c. Industry implications (00:35:28)

2. YouTube. Otherwise known as “the controller of all videos on the internet.” Don’t kid yourself; if you are uploading things to YouTube, they control you to the extent you let them. On a positive note, let’s discuss why that’s OK, as long as you understand the implications. (00:51:15)

Sponsored by - Silencer Shop, Top Gun Range Houston,Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.208 – SilencerCo Sparrow on the subcompact Beretta 21A Bobcat. Historically significant silencer, by popular demand. Long overdue. The Sparrow was SilencerCo’s first product and has enjoyed significant proliferation. Let’s dive into this FRP-famous silencer, technically. This accompanies last week’s report and Silencer Hazard Map Brief 8.1.6.

a. Introduction (00:07:35)

b. Sparrow Design (00:13:14)

c. Sparrow performance (00:21:08)

d. Spatial hazards (00:43:38)

e. Final thoughts (00:46:57)

2. The 300 BLK MCX, or Rattler LT, or LVAW, or whatever you want to call it… is really fun! Like any cool small arm weapon system, you want to make it “your own.” I am busy doing that. Wanted to share some thoughts about my own personal gun and what I have discovered I like, don’t like, and how it’s working for me. (00:48:59)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.208 – SilencerCo Sparrow on the subcompact Beretta 21A Bobcat. Historically significant silencer, by popular demand. Long overdue. The Sparrow was SilencerCo’s first product and has enjoyed significant proliferation. Most folks know about its first-round-pop (FRP) on short barrels. Do you? Check it out in this introduction to today’s report! (00:07:13)

2. Silencer Hazard Map Brief 8.1.6 – SilencerCo Sparrow on the Beretta 21A Bobcat. This brief accompanies today’s report. The Silencer Hazard Map is animated! This allows you to visualize first round pop, which is one of the SilencerCo Sparrow’s pitfalls. Is the hazard field severity surprising to you? Have you ever shot a Sparrow? Many of you have! (00:22:52)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.206 – Battle Born Supply Co. Whiskey Quebec 5.56 on the 14.5-in mid-length gas M4. The Purged version was evaluated in Report 6.207. This is the technical discussion accompanying those two analytical test reports, exploring the performance efficacy of Triply Periodic Minimal Surface (TPMS) baffle structures.

a. Intro and recap (00:06:56)

b. Basic TPMS geometry and applications to silencers, pros and cons (00:17:20)

c. Overall technical observations (00:29:25)

d. Conclusions (00:47:24)

2. Silencer Hazard Map Brief 8.1.5 – SilencerCo Saker 556 vs. the HUXWRX FLOW 556k on the MK18. Due to popular request to showcase a high backpressure conventional 5.56 silencer, we went back into the archives, all the way to Report 6.53 from 2021 and ran the test results through the PEW-SOFT HD Hazard Mapper. Does this Silencer Hazard Map for the Saker 556 help illustrate operator risk when using these types of legacy silencer designs? Can a HUXWRX FLOW 556k save you? Maybe not. (00:50:17)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.206 – Battle Born Supply Co. Whiskey Quebec 5.56 on the 14.5-in mid-length gas M4. Inconel. 3D printed. Are there folks out here using 3D printing for things that are simply not machinable by traditional methods? Yes. This family of silencers is one of them. Let’s explore the performance of Triply Periodic Minimal Surface (TPMS) baffle structures in the intro to this report published with today’s episode. (00:08:06)

2. Sound Signature Review 6.207 – Battle Born Supply Co. Whiskey Quebec 5.56 Purged on the 14.5-in mid-length gas M4. This is the high(er) flow rate brother to the silencer we just discussed. Both silencers have high early-time flow rate. What if you increase the late time flow rate? Let’s check out the performance differentials in the intro to the second report published today. (00:27:16)

3. Silencer Hazard Map Brief 8.1.4 – Analytical test reports too long for you? Maybe you don’t have time to dig into them yet before you eat turkey and pumpkin pie? Not a problem. Hit this Brief for a succinct look at how the Whiskey Quebec 5.56 (Purged and non-Purged models) project hazards to personnel, spatially. Pictures are good! (00:34:15)

Sponsored by - Silencer Shop, Top Gun Range Houston,Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.205 – Combat Application Technologies CAT BEN micro silencer on the subcompact Beretta 21A. Rimfire is back. Compact? Yes. Everyone wants to put small silencers on subcompact hosts. Sometimes that can be pretty loud. Does the BEN offer relief? Technical discussion for this report and PEW-SOFT HD Hazard Map published last week.

a. Introduction (00:06:42)

b. Silencer Hazard Map Brief 8.1.2 (00:14:36)

c. Technical performance (00:19:10)

d. Final thoughts (00:41:18)

2. Silencer Hazard Map Brief 8.1.3 – Unsuppressed MK18 in the free field. There has been a lot of talk about blast overpressure, human risk, and traumatic brain injury (TBI). This deliverable should help folks get more familiar with blast loads, understand blast overpressure in familiar terms, and help silencer folks become more familiar with traditional blast overpressure hazard and human risk vernacular. (00:46:09)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul

Today’s Topics:

1. Sound Signature Review 6.204 – Otter Creek Labs Infinity on 16.3-in and 12.6-in AK systems. The Infinity it one of the most characterized silencers by the PEW Science Laboratory. With the addition of these two tests, it brings the total amount of Infinity record numbers in the Rankings to 11. In this test program, the vented 7.62 end cap was used, exclusively. Technical discussion of this report that was published 22-OCT.

a. Intro and broad performance overview (00:07:43)

b. 16.3-in system performance (00:21:40)

c. 12.6-in system performance (00:32:07)

d. Overall thoughts (00:38:35)

2. Sound Signature Review 6.205 – Combat Application Technologies CAT BEN micro silencer on the subcompact Beretta 21A. Rimfire is back. Compact? Yes. Everyone wants to put small silencers on subcompact hosts. Sometimes that can be pretty loud. Does the BEN offer relief? Check out today’s report along with a bonus PEW-SOFT HD Hazard Map! Intro talk. (00:46:58)

Sponsored by - Silencer Shop, Top Gun Range Houston, Legion Athletics, Capitol Armory, and the PEW Science Laboratory!

Legion Athletics: use code pewscience for BOGO off your entire first order and 20% cash back always!

Magpul: Use code PSTEN to receive $10 off your order of $100 or more at Magpul