Whats out there for a 4-16 scope around 4-5-600 bucks that dials MOA for elevation that has a turret that isnt easily bumped off or even better a turret that locks ? I run a Vortex Viper HSLR 4-16x50 and like it but it seems the folks of rokslide hate vortex. Suggestions ? And no - I wont save for swaro zeiss and other 900 dollar scopes .