I would say too loose also. I had my elevation move an entire rotation on a pack trip (5 miles). I love the SIII but my only gripe is the loose turret. I just put a neoprene cover on it and seems to stop the movement.
They are to loose when carried out in the field with the caps off, mine has turret caps but I leave them off. It is not uncommon for my turrets to move a few clicks by the time I get set up and check my 0. Not really a big deal if you check your zero. That said, my SIII's turret detents are very positive and definite.
Me and my two sons have owned 5 SIII's and have never had a problem. Yes, they are a little looser than my Nightforbut but are tight enough to work for us.The turrets are spot on and the optics are very good. I honestly don't think you can find a better long range scope for the money.