Minimum Scope to Barrel Clearance?

[zonfather]

I'm trying to mount my Vortex Viper PST 4-16x50 FFP on an R700 VSF using Leupold Mark 4 steel rings and I can't find a definitive answer on minimum scope clearance between the scope and the barrel. I have a 0 MOA base on there but was thinking of moving to a solid 20 MOA base to reach out to 750+ yards.

I know some on the webs suggest if there's light between them, you're good. I can't get the scope lens cover on it but probably could if I shave it down a bit. Is this too close? Thoughts? Would love to see how you have yours set up and if there are any SMEs out there on LR / Precision shooting that have thoughts on the subject that would be greatly appreciated.

Thanks!

 

[johntheplinker]

As long as there is no contact between scope and barrel, you're good. IIRC the furthest I have a scope off the barrel is about 1/16", and that is to allow room for a folded down rear sight.

 

[zonfather]

As long as there is no contact between scope and barrel, you're good. IIRC the furthest I have a scope off the barrel is about 1/16", and that is to allow room for a folded down rear sight.

Thanks for the advice!