Bought the Vortex viper myself Elliot, I use mine on a 6.5x55 excellent scope, coupled with the warranty and after sales service Vortex are fantastic value, so much so in my opinion I have just ordered another one a Vortex Crossfire ll 4-12-50 for my .222
I lost one of my turret caps after a zeroing session, I phoned Vortex and asked where I could purchase another one, they took my name and address 5 days later I received 2 new turret caps free of charge including delivery. They know how to look after customers.
That's interesting. I had the same experience with the battery cap for the ill