As mentioned in this post, I am now the proud owner of two rifle suppressors. They are a Surefire 762 Mini and a AAC Ranger 2. They are of similar size and weight, with the Surefire being a bit longer and heavier. There are two main differences.
The Surefire has a quick detach (QD) mount, allowing me to quickly attach it to anything with a matching muzzle device. As well, the Surefire is a .30 caliber suppressor, where the Advanced Armament one is for .223 (and smaller) only. As well as being for .30 caliber, the Surefire is rated for more powerful cartridges. I couldn't shoot a 22-250 through my Ranger-2, even though it's 22 caliber, because the pressure is too high. I could damage it. However, cartridges of that power are perfectly fine to shoot through my Surefire can. It offers more utility for the extra size and weight.
I wanted to see how they compared side to side on similar platforms using the same ammo. I went to my local indoor range and tried them back to back on AR-15's with 12.5" barrels. This is where my Ranger-2 lives- permanently attached to a 12.5" barrel. The other gun was my Short Barrel Rifle, also with a 12.5" barrel.
They sounded pretty much the same. At the indoor range I couldn't tell a difference. Now, at the muzzle or standing to the side or downrange they very well may sound different, but I was surprised as to how similar they sounded. No real change in volume or tone. Keep in mind .223 is quite loud, even silenced. It's obviously a gun firing and is louder than a .22 rimfire. It's not like the movies. But outdoors it's almost hearing safe when you use a suppressor. Not quite, but getting there, and a lot quieter than unsuppressed for sure.
My goal with the new Surefire can is to put together a deer hunting rifle that I can mount it on. I'm quite protective of what hearing I have left and hunting is one of the few times I discharge a firearm without hearing protection. Something that would take the snap out would be most appreciated.
I am going to continue to test these side by side and I'll share my thoughts as I go. So far I'm surprised by how similar sounding they are.