Suppressed Group Sizes (Need Help)

[Macintosh]

I think the point folks are making is valid, most of the suppressors I’m familiar with (admittedly only a handful, although I think these are the go-to ones for a centerfire hunting rifle now) are exactly the same regardless of whether you are using a hub-style adapter or a direct thread. By that I mean the hub vs direct thread part are both identically threaded to the can itself, and the hub adapter on gun is also threaded just like a threaded adapter on the gun taking it from 1/2 to 5/8, so “same” quantity of tolerances regardless of what system you use. After just having shopped for a new can, NONE of the cans I looked at eliminated a tolerance by using a hub style adapter. On the contrary, the can I ended up buying, if you use that brand‘s hub style adapter, you actually ADD a tolerance assuming your barrel is directly threaded at 5/8 24.
Are manufacturers making cans with a larger bore to accommodate the stacking of tolerances though? Of course they are. manufacturers make cans they can sell to as many customers as possible, and if one of those adapters is out of their control, they have to decide how much wiggle room to build into the bore size to account for their own tolerances plus avoid problems with other parts in the system. However, I’d be tempted to say that buying a .308 caliber can, and shooting a .264 or .284 bullet through it, makes a far larger difference than whatever allowance they provide for a poorly threaded adapter, but that’s just conjecture.

Regardless, folks can’t even agree on how loud individual suppressors are, or even how to measure them, so I highly doubt anyone can say this effect is universal or significant one way or another with any authority.

 

[Formidilosus]

Any one that knows anything about suppressors knows the bigger the hole is the less efficient the suppressor is.

Hmmm. How many dB quieter on average is a 6.5mm when fired from the exact same can but with a 6.5mm bore versus a 30cal bore?

 

[nm.otter]

How many dB quieter on average is a 6.5mm when fired from the exact same can but with a 6.5mm bore versus a 30cal bore?

I'll take 0.25 dB for $10, Alex -- but it will require about 50 rounds in a controlled (indoor) environment from each unit in order to know for sure.

 

[Dan Carey]

Hmmm. How many dB quieter on average is a 6.5mm when fired from the exact same can but with a 6.5mm bore versus a 30cal bore?

Great question, why would I or anyone else know a reasonable answer.
With all the variables, such as how the different cartridges are loaded and bullet weight, type of powder and burning rate of the powder.
My suppressors are caliber specific and I have 13 and never found a need to compare them. But, even 1 DB would be too much. Suppressors are expensive and are not all created equal. I've found over the years that the sounds they make are also different. The ear which is not an instrument can perceive the sounds differently between suppressors. Which means 2 suppressors can have the same BD reading and yet one is noticeably quieter than the other to the ear.

 

[Formidilosus]

Great question, why would I or anyone else know a reasonable answer.
With all the variables, such as how the different cartridges are loaded and bullet weight, type of powder and burning rate of the powder.
My suppressors are caliber specific and I have 13 and never found a need to compare them. But, even 1 DB would be too much. Suppressors are expensive and are not all created equal. I've found over the years that the sounds they make are also different. The ear which is not an instrument can perceive the sounds differently between suppressors. Which means 2 suppressors can have the same BD reading and yet one is noticeably quieter than the other to the ear.

Ok. So you have no idea for the statement you made below?

Any one that knows anything about suppressors knows the bigger the hole is the less efficient the suppressor is.

You, nor anyone else can hear 1 dB difference. The difference in dB between a 6.5mm going through a 6.5mm bore can and a 30cal bore can is less than 1dB- often times less than .25 dB, in a standard muzzle forward design.
Your whole rant about “larger bore” and “anyone knows” is not factual.

 

[Formidilosus]

I'll take 0.25 dB for $10, Alex -- but it will require about 50 rounds in a controlled (indoor) environment from each unit in order to know for sure.

Ding

 

[Dan Carey]

Ok. So you have no idea for the statement you made below?




You, nor anyone else can hear 1 dB difference. The difference in dB between a 6.5mm going through a 6.5mm bore can and a 30cal bore can is less than 1dB- often times less than .25 dB, in a standard muzzle forward design.
Your whole rant about “larger bore” and “anyone knows” is not factual.

Do you have any actual facts to back up your statements? In particularly the 1 DB claim?
Normal conversation is 80 to 85 DB, a whisper is 35 DB, I can hear the difference, your mileage may vary depending you your hearing loss.

More important is the use of selected parts of a post when quoting.
As in the 1 db statement. I said in post that 1 db is too much. I didn't say I could hear it. I meant It was important to me to have the quietest suppressor I could have.

 

[Woodman22]

Following

 

[Formidilosus]

Do you have any actual facts to back up your statements? In particularly the 1 DB claim?

Hundreds of suppressors, and hundreds of thousands of rounds through them, and thousands of rounds of metering equipment.

You talk an awful lot about things you don’t understand.

Normal conversation is 80 to 85 DB, a whisper is 35 DB, I can hear the difference, your mileage may vary depending you your hearing loss.

You can hear the difference between 85dB and 35dB? Well yeah. 50db is quite a bit more than less than 1dB.

More important is the use of selected parts of a post when quoting.
As in the 1 db statement. I said in post that 1 db is too much. I didn't say I could hear it.

So there is no way you can hear 1dB difference, let alone .25 dB, but “it’s too much”? Do you understand that on any given day if environmental consistent suppressors will vary by 2’is dB? Do you understand that just can to can variation of the exact same model is far larger than .25dB?

I meant It was important to me to have the quietest suppressor I could have.

Oh. Ok. What can do you currently use then?

 

[Dan Carey]

After reading all the test data you have provided from the reliable sources you quote, I give up!
You have convinced me that any further conversation on this matter would be akin to a tree talking to a rock.

 

[Formidilosus]

After reading all the test data you have provided from the reliable sources you quote, I give up!
You have convinced me that any further conversation on this matter would be akin to a tree talking to a rock.

No- you “give up”, because you have no idea what you are talking about. This is a trend in your posts.

You can’t answer why something you can’t hear matters. You didn’t answer what suppressors you currently use for max suppression- because either you don’t have suppressors, or because you know that the suppressors you use aren’t offering max suppression.

 

[Dan Carey]

You're right again. Showering with me with your vast knowledge is overwhelming. But, you have yet to PROVE me wrong on anything I've said. It's not up to me to prove anything to you.

 

[Formidilosus]

You're right again. Showering with me with your vast knowledge is overwhelming. But, you have yet to PROVE me wrong on anything I've said. It's not up to me to prove anything to you.

Actually, you made the claim that “anyone knows”. You made the claim, I’m asking you what the difference is?

 

[Ucsdryder]

Neither of you proved anything. Pot/kettle…say hi to eachother. Good Lord… the “trust me bro” I shoot a lot isn’t a fact. Someone post up some DBs or move on.

 

[Formidilosus]

Neither of you proved anything. Pot/kettle…say hi to eachother. Good Lord… the “trust me bro” I shoot a lot isn’t a fact. Someone post up some DBs or move on.

I didn’t make the initial statement- I asked. Read the thread.

If someone says “anyone knows”, it’s on the person that made the statement to show that “anyone knows”. For example, it was on me to show evidence that lots of scopes lose zero from small impacts- anyone that has any logical thought at all understands that I have went far above the amount of evidence required to show that most scopes have a problem in zero retention with impacts.
But, if you want numbers on a spread sheet, I’ll get them.