i was wondering because i read this
"Definately louder, could have a negatice effect on accuracy, but negligable, as with any muzzle obstruction (muzzle break compensator etc.)." owner of oly
and
"I have one and like it very much. I like the change in tone that comes with it. I haven't had any problems with it coming off either (a little locktite on the set screws helps). Though I know it wasn't designed/marketed to be a flash-hiding device, the ball of flame that came from my muzzle significantly decreased when I installed the Oly muzzle brake. I experienced NO noticible difference in accuracy with the brake on
(cheap ammo-now that's a different story). I won't thread my barrel. I've been happy with it just the way it sits (w/muzzle brake). When my barrel wears out, down the road, I'll replace it with a threaded one. But until then, I'm very happy."
just wondering if there was any truth to it
linky