Pretty interesting results: http://www.thetruthaboutguns.com/20...-silencer-testing-event-ever/#comment-4044087 It's really rare to see a comparison like this between so many cans done by a third party using B&K 2209s. Spoiler Alert: The YHM Resonator, a new for 2018 can I've already seen on sale for $370 was the quietest on .308 and fourth quietest on .223. My Saker 762 didn't do too hot on the .308, but did quite well on .223, which is kind of odd. One thing I do wonder about is how much the temperature/pressure/humidity changed throughout the test. An engineer from a local suppressor manufacturer has told me that they sometimes see as much as a 5dB swing over the course of a single day using the same can/rifle/ammo from changes in the atmosphere.