I'd like to ask readers a question, but first a little preamble for context.
In this thread it's suggested that many of the lots of match ammo that we get are not consistent. Some boxes may be better than others, some rounds within boxes may be better than others.
To illustrate below are some results from yesterday showing ten groups at 100 with the same lot of Midas.
If left-to-right dispersion can be disregarded for the moment (there was very little to no wind), it seems obvious that there was considerable vertical spread in many groups.
Ammo velocity differences don't seem to explain the vertical spread. In the targets shown below the ten shot ES for each group ranged from a low of 14.7 fps to a high of 29.8 fps. For each ten shot group, the ES is shown in
red. (FWIW, ballistics calculators show that a MV spread of 30 fps will result in about 0.750" of vertical at 100 yards.)
Something other than MV spread explains the vertical dispersion, something that makes some of the rounds more consistent than others.
Whatever that something is, it would be good to have more of it.


Now to the question. To help keep it simple, disregard the role of the shooter.
Imagine there's a lot of match ammo in which all rounds are very nearly equally consistent. This lot has a very small ES and SD and bullets are near perfect in balance/center of gravity. With a good rifle/barrel, a lot like this should give ten groups like the best ones shown above. Shooters would agree that this would be good, consistent ammo.
With lot consistency in mind, here's the question. It leads to other questions.
Do good rifles/barrels shoot the same lot(s) of good consistent ammo well?