Will it be louder?

[adamsredlines]

Okay so I have an 8.2 in SBR AR-15 and a 16 inch Ruger American bolt action. Using the same suppressor and same ammo obviously the AR-15 is significantly louder. So my question is will there be a noticeable difference in noise if I were to cut down the bolt action to say a 10 in? The bolt action with the can is super squirrel stealth mission quiet and I would like to keep it that way but I am really jonesing for an SBR bolt-action as long as I do not lose too much stealth. This is mostly for patrolling the backyard in the evening for critters without bothering the neighbors. I know the cheap and obvious answer is to leave the bolt gun alone since it does what I want it to but I sure would like to get that extra barrel length out of there if I can.

 

[adamsredlines]

To clarify this is using subsonic 300 Blackout through a Silencerco Omega 36m.

 

[adamsredlines]

I really want to turn this:

Into this:

 

[Matt Giroux]

If you’re running subsonic loads then it shouldn’t make more than a couple decibel difference. On the 556 sig can i run, there is a noticeable difference between my 12.5 SBR and my 7.5 pistol. While it is noticeable it’s negligible and that’s running standard 55 and 62grain ball ammo.