Originally Posted by Kevin Cram
I would recommend having them opened up to 8-40. This is the basis for where your optics are mounted. Having something loose or not fit correctly will greatly effect your accuracy.
Go to 8-40 and be done with trouble.
Also there are sets of bases that have provisions for 8-40 screws (Like Leupold) and two complete
sets of screws included (6-48s and 8-40s that are the right length).
J E CUSTOM