No. But the action of the semi will be the loudest thing when shooting subsonic (depending on the caliber). If you want really quiet, get a bolt action and shoot subs.
Edited by Toxarch (10/26/16 07:04 PM)
It is far more important to be able to hit the target than it is to haggle over who makes a weapon or who pulls a trigger.
— Dwight D. Eisenhower