So I am kinda new to all this and looking for advice/help. I have a rem 700 sps 300 win mag. Glass bed the stock and added more of the hardening to the entire inside of the stock to add regidity. Lightened trigger and put on the vortex viper pst ffp 6x24x50. I handload my rounds and have it Zeroed at 200. My problem is when trying to shoot further away I currently can only raise 40 clicks in elevation. Which only allows me to get to around 680 yards. I want to get to 1000. So how do I fix this? My only thought was to change my rings from medium height to low and re zero and take out some shims in the turrets. Is all this necessary?