Scope problems

This is a gun that i worked on for a friend. Its an older remington semi auto 243. Its a weaver style rail now with flathead screws. I dont know much more then that right now. It looked like it may have been 0 moa. It has new leupold medium rings. There's not enough elevation.
 
My son recently fixed one similar for a family member. Pump rem 30-06. Nice leupold scope. Was out of elevation about 6 inches low at 100. They had bought a 20 moa rail and mounted it backwards. Normally the mounting holes don't allow it but on this gun they were the same either way. Remounted. 4 shots later it a had a solid 1 inch group with factory ammo
 
Top