I live in an area where it is legal and safe to shoot a .22 pistol in my backyard. I have a large pile of stacked wood that I use as a backstop and shoot from 50' to 75'. There is a wooded area behind the wood pile. I keep my targets close to the ground so I am always shooting down. I have houses on 2 sides of me that are 150-200 yards away. Others beyond that. I haven't had any complaints yet and I would like to keep it that way. In the interest of being a good neighbor I am trying to find a way to lessen the noise I produce. I am thinking of building a wooden box approx. 48" long and 24" square. I would mount legs on it to get the center of it up to shoulder height. I would then hold the gun inside when shooting through it lenghtwise. I would line it with that bumpy packing foam so that the opening opposite me would be about 12"-15". I would be able to easily see around it and through it so I would have the ability to see if something or someone moved into my shooting zone. Depending on how thick and heavy I build the box would it even make enough difference in deadening the sound to make it worth the effort? Just wondering if anyone has tried this before and what was the result. Thanks.