I've just tried some of the 710 fps Quiet ammo, accurate at ten yards in my S&W 617 and not too loud, BB gun quiet in a rifle, seems like I read a disclaimer for barrels longer than 24" (?)
They ain't enough for groundhog (after popping one at 15 yards with the segmented version). I used CB Longs for years with pretty decent results for squirrels at closer ranges.
