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STO Big Bore moderators

Update... I got the emporer and it is slightly quiter than the ronin as expected. Its not as big of a difference to my ear as i thought it would be, but it is noticeable. I ordered a 45 caliber kami just to play around with and make sure im not missing anything. I figure from the bench i dont care how long it is as much as i care about how quiet it is. Im still waiting on my muzzle brake to get here so we will see how that goes as well. Ill report back with an update when I get everything tested.
 
I ordered the Falx high flow version in .357 to use on my M4 800mm barrel. Not as strong as yours @Nealgl1985 but still a larger caliber. I have had great results with the Falx and Sarrissas in .30 and lower so I'm use to the "higher pitch" of the STOs and it doesn't bother me. I have a Ronin in .30 on my Vulcan 3 700mm and it does a good job of taming the bark. Will report on the sound when it gets in and I shoot with it.