Air Lock Industries Suppressor

[IDVortex]

Why? Cant imagine it'd make a huge difference and you probably get additional back pressure and less flexibility as built in down sides.

Im ignorant with cans still, so excuse me. Lol.


I thought a suppressor works better/more efficient if you match the diameter of the can to the caliber?

 

[Formidilosus]

Im ignorant with cans still, so excuse me. Lol.


I thought a suppressor works better/more efficient if you match the diameter of the can to the caliber?

It’s not nearly the effect that people believe with muzzle forward cans. Historically the vast majority of cans will be around 1dB reduction.

 

[Presswood_936]

Im ignorant with cans still, so excuse me. Lol.


I thought a suppressor works better/more efficient if you match the diameter of the can to the caliber?

It definitely does make a big difference and when you’re talking about shaving as much weight and length as possible a tighter bore will definitely help .

 

[wind gypsy]

Im ignorant with cans still, so excuse me. Lol.

I thought a suppressor works better/more efficient if you match the diameter of the can to the caliber?

I'm sure there's some truth to that and it probably varies by can.

TBAC used to have an ultra 7 223 can but found zero performance benefits compared to their 6.5 bore of the same so that's at least one case of the juice not being worth the squeeze. 6.5 is already a tighter bore than a standard 30 cal. So maybe the 6mm version could be incrementally better but maybe not a huge improvement over 6.5 bore unless other things are tweaked as well? The below is a snip from TBAC's website.

 

[Q_Sertorius]

I don’t think 20” is standard for 6.5 cm . In his testing he has used other silencers like the Sico harvester evo side by side to give a baseline .

Where is the information listed about the testing protocol with these side-by-side tests?

There is no "standard barrel length for 6.5 CM" or any other caliber - at least not explicitly in any kind of nonexistent industry regulations - but there are commonly accepted standards in the industry as used at the TBAC Summit and by Pew Science.

Part of the issue with shopping for a suppressor is the lack of well-defined industry standards and the difficulty of conducting sound tests - as Unknown Suppressors has repeatedly explained - but there are clear military standards and testing setups out there which manufacturers could choose to follow. Results can vary day-to-day based on environmental conditions. So the instant someone starts to take measures that look to me like they are trying to get away from the most common test setups - using a common .308 round (e.g. M118LR) in a 20" barrel - I get really suspicious. Maybe it doesn't actually amount to a measurable difference, but it bothers me that they chose to use a longer barrel and an unspecified round. I am going to assume that many manufacturers will try to put forward the best possible verifiable data, but I least want the starting point for the test to be as close as possible so I have some idea how something really compares.

The other measurables look really attractive.

 

[Presswood_936]

Where is the information listed about the testing protocol with these side-by-side tests?

There is no "standard barrel length for 6.5 CM" or any other caliber - at least not explicitly in any kind of nonexistent industry regulations - but there are commonly accepted standards in the industry as used at the TBAC Summit and by Pew Science.

Part of the issue with shopping for a suppressor is the lack of well-defined industry standards and the difficulty of conducting sound tests - as Unknown Suppressors has repeatedly explained - but there are clear military standards and testing setups out there which manufacturers could choose to follow. Results can vary day-to-day based on environmental conditions. So the instant someone starts to take measures that look to me like they are trying to get away from the most common test setups - using a common .308 round (e.g. M118LR) in a 20" barrel - I get really suspicious. Maybe it doesn't actually amount to a measurable difference, but it bothers me that they chose to use a longer barrel and an unspecified round. I am going to assume that many manufacturers will try to put forward the best possible verifiable data, but I least want the starting point for the test to be as close as possible so I have some idea how something really compares.

The other measurables look really attractive.

By “standard for 6.5cm “ I mean you’ll find a lot more 22”-24” 6.5cm rifles in the wild than 20” . Either way the guy just used what he had on hand .

 

[4th_point]

Part of the issue with shopping for a suppressor is the lack of well-defined industry standards and the difficulty of conducting sound tests - as Unknown Suppressors has repeatedly explained - but there are clear military standards and testing setups out there which manufacturers could choose to follow. Results can vary day-to-day based on environmental conditions. So the instant someone starts to take measures that look to me like they are trying to get away from the most common test setups - using a common .308 round (e.g. M118LR) in a 20" barrel - I get really suspicious. Maybe it doesn't actually amount to a measurable difference, but it bothers me that they chose to use a longer barrel and an unspecified round. I am going to assume that many manufacturers will try to put forward the best possible verifiable data, but I least want the starting point for the test to be as close as possible so I have some idea how something really compares.

It might not be deception, but simply an oversight not to include the round used on the Air Lock website.

I'd be less concerned regarding 20" vs 22", or the round used, and more concerned trying to compare results from different people with different equipment, even if a standardized test was followed.

Without your own test equipment, someone like Pew Guy might be your best bet for consistent method and equipment. I find him a bit annoying to listen to, but have not heard anything incorrect from him regarding acoustics, at least in the few podcasts that I have listened to.

 

[khuber84]

Ordered one today........prob won't be 3 weeks till in hand, bout the time I have to be back at work!

 

[Bluefish]

Im ignorant with cans still, so excuse me. Lol.


I thought a suppressor works better/more efficient if you match the diameter of the can to the caliber?

Slightly. The test data from AB shows 3-5 db less with a matched bore vs larger bore. They have a YouTube video showing the testing. Most people can’t tell a difference of less than 3db. Ears are simply not that sensitive, especially for impulse noise.

 

[4th_point]

I'm surprised AB recorded that much of a difference.

A 6 dB increase is 2x the sound pressure, so 3-5 dB is not a trivial amount.

 

[Formidilosus]

Slightly. The test data from AB shows 3-5 db less with a matched bore vs larger bore. They have a YouTube video showing the testing. Most people can’t tell a difference of less than 3db. Ears are simply not that sensitive, especially for impulse noise.

Muzzle forward or reflex can?