Rifle Scopes : Slipping the turrets after initial zero

 

I just bought a SWFA SS 10x42 mil/mil(mounted on my ruger precision rifle) and was curious about slipping the turrets after I get it zeroed in at 100yds.

 

Are the elev/wind turrets spring loaded? Meaning, if you lossen the set screws to retun the turrets down to 1 on the scope for a 100yd zero, do you need to apply any inward pressure so the turrets and setscrew are in contact with the reticle gears? A man on another forum had some issues with his turrets being "loose" and not having any noticeable clicks after loosening the set screws and readjusting them.

 

I'm new to the optic world. Most of my shooting has been with iron's in service rifle matces and I'm very excited to use my SWFA SS. Just curious on what the best course of action was to take after I get my initial zero at 100yds and have a baseline on the turrets so that I can adjust accordingly for longer ranges(500yds+)