My coyote rigs consist of a remmy xr-100 in 204, a remmy 788 in 22-250 and a T/C pro hunter in 25-06 depending on walking distance and range of the shots. I do use some camo tape but only apply afew strips to the scope and barrel to break up the solid black silhouette. Does it work?. I dunno, but it can't hurt, right?.