Thread: Quietest firearm possible?

I would highly recommend a H&R .44 mag with a Gunworks Maximus suppressor and sub sonics with Hornady 240 grain XTPs if you are wanting to shoot decent sized animals at reasonably close range.
Shorten the barrel up until its still just legal for length and fit suppressor to that.
You don't need much barrel length to get subs up to speed even with Trailboss powder and cases will last a lifetime !
Don't try to go too slow for noise or sooner or later one will stick in the barrel !
Load up until you break the speed of sound ( do load work without ear protection ) and then go back down to your previous quiet and accurate load.
The 240 XTPs are very accurate in my rifle exactly as above.
I tried the 300 grain XTPs but they don't stabilize and also the 240s penetrate and expand more reliably on big animals.
For shooting pests you can still use copper washed / hard cast el cheapo projectiles and the accuracy is OK.
Be aware that the projectiles will exit ever thing you shoot at and can be heard zipping off into the distance so be especially careful when shooting possums up trees.

It helps to have a decent gun dog to trail animals if you intend shooting deer, goats or pigs with them as they aren't flattened on the spot.
Just treat it like bow shooting ( if you don't see them drop ) , wait a short while and then trail slowly with the dog and they will usually have stopped and bled out fairly quickly.

I have a lot of .44 sub testing with trailboss on a sheet if you want it.

A 22 bolt action rifle launching subsonic bullets in a very long barrel with a very long suppressor is the quietest you would get.
The bigger the exit hole the more noise it makes.
The heavier the projectile you launch, the more powder you need, the more gases it produces, the more noise it makes.

These are the rules.