Erik Cortina said:mysticplayer said:And for me, waterline is a group with very low vertical.... ideally placed across the X ring but sometimes....
Jerry
Jerry, so by your and Rocky's definition of waterline, you can have a group with no vertical at all low on the 6 ring and say that you held great waterline?
Like I said before, waterline is an imaginary horizontal line across the center of the target. You will often hear shooters say things like "...waterline 8" as opposed to a "vertical 8" when describing where their shot impacted on the target.
If I shot enough rds in the 6 ring to form anything resembling a group, I might be better off taking up golf

Unless the bullets are landing in the center (vertically) of the target, I am too busy figuring out why and dialing the elevation dial so I am.
If a load has a lot of vertical ie will not shoot "waterline" (or more then 1/2 min of vertical), there is no way to center that group. You will place shots high and low in random manner - vertical ping pong (also called a Train Wreck or ClusterF%*@)
Sooo... a load that will shoot waterline is one that has the mechanical accuracy to stitch a line across the target with as little vertical as possible. Just like what AZS shows with his very nice 223 loads. Remember, he is testing a load NOT shooting a relay for score. So position on target has little bearing.
Now that he KNOWS the load will shoot with little vertical, shots that trend high or low on his scored target simply require a scope adjustment to center on the "waterline" of the target.
But we all know this.... the symantics are getting in the way of the obvious.
Jerry