Let me start by saying that I am pretty ignorant when it comes to tactical scopes which is why I ask this. I would like to get into long range shooting and have done a little. I saw the post here about the new sightron S6 1-6 ED scope. I did not want to hijack the thread so I started this one. I am curious as to what the advantages of a 34mm tube on a 1-6 scope are?