Why doesn\'t accuracy always hold up?
I've always believed -- as I'm certain many of you have -- that if a given handload in a given rifle yields sub-0.5 or even sub-0.25 MOA accuracy at 100-200 yards, then one can extrapolate this accuracy to as far as the rifle/handload combination will reach, withstanding control of environmental/ meteorlogical variables, of course. But recently, I found two handloads using projectiles of different weight only (same manufacturer, same design, and same construction) that yield approximately the same level of accuracy at 100-200 yards, but which perform very differently at great distance (e.g. 1000 yards). Having just walked into the ranchhouse of a friend's spread here in east Texas where we drove last night to do some 1000 yard shooting with our .300 WSMs, I write you all this to tell you that a Lapua 167-grain Scenar load held up much better than the a Lapua 185-grain Scenar load. And this is the third time now that I've seen this in this rifle and with these same loads.
Why does this happen?!?!?
If you can see it, then you can hit it!