1. M

    Rifle Scopes Vortex scope question??

    I have the vortex viper 6-24x50 pst and was at the range and was the first time I've dialed dope for the given range. I shot groups at 100 and was dead on the bullseye then dialed out to 400 yards and shot. When i dialed back to zero at 100 and shot. I was grouping about an 1in to the right but...