I've had the same experience. I've only had my SS fixed on one rifle one time when I was out hunting, and it got bumped and moved me a couple clicks of windage. I saw it and put it back, but this experience plus my experience having it move in a comp are prime reasons I look hard for locking turrets. AFAIK, SWFA SS scopes do not offer this feature, but perhaps some of the newer ones do.
Put a zero-stop on it. Give it a twist when you get ready to shoot. Snipers are trained to look at the turret when they flip the safety off.
