I hunt with a 308 Win, REM 700, & AAC SR-7 suppressor using a subsonic load firing 180 grain REX bullets (Maker Bullets). Their is absolutely no boom, more of a Psssst, similar to a pellet rifle. I hunt in a rural area, but still hate when neighbor land owners text me asking what I just shot. These texts stopped after I started hunting suppressed with subsonic loads. Now I've shot deer from food plots and watched them run away while other deer continued feeding. No one hears the shot and I am left alone. Granted, this heavy subsonic load reduces my hunting range to 100 yards or less. I am zeroed for 50 yards and have a 5.5" drop at 100 yards. While this is an expensive set up, I am totally thrilled.