Thread: Suppressors - what’s the go?

Hey guys,

I recently purchased a rifle (my very first!) in 6.5CM which has a 1/2X20 thread. What sorta suppressor would you guys recommend? Both brand & size. I’m after something that won’t break the bank and is light, ideally. Mainly looking to save my ears, 6.5CM barely kicks haha.

Could someone also explain suppressor sizing (calibre) to me - do I need something to fit my rifle’s calibre or will anything larger than a rifle’s calibre be fine too?

Cheers team

Anything for a larger calibre will work but a little less effective the larger you go. It can be worthwhile if a good one comes up at the right price.

Make sure the thread is the same as your rifle, if you think you might want to get a bigger calibre one day you could get a larger suppressor so you don't need to buy another. I have separate suppressors for each of my rifles, always remove them from the rifle when in the safe too. Overbarrel suppressors are quieter than muzzle forward. I think someone on here did a comparison not too long ago.

Oh, and if you get an overbarrel, make sure the rear barrel bush is the correct diameter. If it's too small the thread may not tighten down fully and if too large it will not support the suppressor and will also leak powder gases back into your face.

DPT ones have a plastic insert that can be bored out to suit your barrel for an over barrel one. I have a DPT and a Gunworks both are good and both are overbarrel

You shouldn't get powder and gasses in your face if the bush isn't the right size unless its a suppressor that doesn't have an isolator tube, I haven't seen one of those in a very long time and I dont know of anyone that makes them like that anymore.

We run a mixture of suppressors here dpt mae hushpower, all seem to work. Although we dont own anything in 30cal we run 30cal suppressors so they will fit any of our rifles. I doubt you'd be able to tell the difference using larger cal suppressors on small cal rifles without some decent sound measuring gear

Originally Posted by blip

You shouldn't get powder and gasses in your face if the bush isn't the right size unless its a suppressor that doesn't have an isolator tube, I haven't seen one of those in a very long time and I dont know of anyone that makes them like that anymore.

I have got a Hardy can that does that...Its not supposed to but it does......

DPT is good, overbarrel is quieter and not as much length forward of the muzzle (which is better because it catches less in the scrub). You need a suppressor of the correct or larger bore diameter. Going 30 cal you won't notice much increase in noise, but going higher you will.
You also need one that is rated to the powder capacity of your rifle caliber. The options are rimfire, centerfire and centerfire magnum. For 6.5cm you just need the centerfire rated one.
As others have said, don't store your rifle with suppressor in place.

The other thing to know is that once you fit your suppressor, you will need to sight your rifle in again and then only use it with the suppressor on.

Originally Posted by timattalon

I have got a Hardy can that does that...Its not supposed to but it does......

but remember "it's not a fault"

Originally Posted by jaacko

Hey guys,

I recently purchased a rifle (my very first!) in 6.5CM which has a 1/2X20 thread. What sorta suppressor would you guys recommend? Both brand & size. I’m after something that won’t break the bank and is light, ideally. Mainly looking to save my ears, 6.5CM barely kicks haha.

Could someone also explain suppressor sizing (calibre) to me - do I need something to fit my rifle’s calibre or will anything larger than a rifle’s calibre be fine too?

Cheers team

PM Friwi. Get the best advice. Dude knows more about it than AI. True.

Originally Posted by timattalon

I have got a Hardy can that does that...Its not supposed to but it does......

I have made up a diverter out of motorcycle inner tube rubber. Punched a hole smaller than the dia of my barrel and the same outer dia as the supressor. Slip it on first. Stops any bits of gas hitting my face. Its used on my original Gunworks 30 cal suppressor from early 1997.

Originally Posted by jaacko

Hey guys,

I recently purchased a rifle (my very first!) in 6.5CM which has a 1/2X20 thread. What sorta suppressor would you guys recommend? Both brand & size. I’m after something that won’t break the bank and is light, ideally. Mainly looking to save my ears, 6.5CM barely kicks haha.

Could someone also explain suppressor sizing (calibre) to me - do I need something to fit my rifle’s calibre or will anything larger than a rifle’s calibre be fine too?

Cheers team

hey jaacko, not wanting to start any arguments haha but what made you want a 6.5CM? im just wating for my licence and looking at getting one aswell. what brand/model did you go with?

Ages back I read a couple articles on suppressors that did some quite impressive sound measuring. The rough rule was that on equal internal volume, similarly designed suppressors, 1 inch of suppressor forward of the muzzle is equivalent to 4 inches behind the muzzle. When you look at suppressor decibel reduction ratings that seems to be reasonably true - overbarrel suppressors tend to have a lot more internal volume than muzzle forward, but they don't reduce the sound as much as the same volume muzzle forward suppressors.

There are obviously trade offs to putting a giant suppressor off the front of a rifle rather than putting some of it back over the barrel, but it's an interesting factor.

As others have said, you can put larger caliber suppressors on smaller guns. It'll be slightly less efficient, but probably not noticeably so. Seems lots of people use .30 cal suppressors on a range of rifles from .22 to .30 just out of convenience.

If your gun isn't factory threaded, check that it was done properly - there are some pretty terrible threading jobs and you can end up with the suppressor threading on wonky and the bullet striking the suppressor on the way out.

Originally Posted by 6x47

but remember "it's not a fault"

nothing ever is IIRC