Not silent?
From 200-300 yards away, a subsonic rifle is probably not going to be heard before it hits its target, if at all. I have a .30 cal can on a .300 Whisper, and that little snap at ignition isn't too detectable even 50 yards away (depends on surroundings, of course), and the same can on a .300 Win mag reduces the sound to a .22 short at the muzzle, and you get the hypersonic crack out along the way, but the target will feel the bullet LONG before they hear the crack. From a tactical standpoint, when the oposition comes to take things away, they'll know where your semi auto rifle is being fired, but they may not know where you are using your suppressor. To me, that puts is value way above the semi auto rifle. Greg