Re: Question about berger vld's
Some bullet/twist/velocity relationships lead to this "tighter MOA" at distance. Cant expalin it, just know it happens. To answer your question, yes, you should "test" your loads at the distances you wish to shoot them. 100 yards can be helpfull but isnt the end all nor the answer.
As far as inches smaller at distance versus closer ranges, it has happened to me with a load or two. I had one load that comes to mind that would shoot 1 MOA all day long out to 600 and yet concistently shoot sub 1/2 MOA at a full 1000. Go ahead, eject. Again, cant explain it. I am not a scientist just a shooter. The same rifle had loads that maintained the same MOA from 100 to 1K and others that maintained it to a given distance and then opend up dramatically past 800, yet others that got better with distance. IMHO its all in the bullet/twist/velocity relationship.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.