Vortex Viper Range - Difference Between HS HSLR HST PST?

What is the difference between the vast range of Vortex Optics Viper range of scopes? HS, HSLR, HST and PST, what do they all mean and which variant is right for you? Support the Channel - patreon.com/EnglishShooting My Social Networks (Come talk to me!) - http://www.facebook.com/EnglishShootingUK - http://twitter.com/ShootingYouTube My Email - [email protected] Equipment Used for Videos Canon 700D Camera Sandisk Extreme SD Card RØDE VideoMic Pro Microphone GoPro Hero Camera DJI Ronin SC Opinions are my own and do not necessarily reflect the opinions of any companies mentioned in the video.