I wish you fellows would not use the term “Last Century.” It makes me feel so darned old. I remember when CCI rimfire first came on the market and had been shooting rimfire riles and handguns for many years before. And when someone says, “Last Century,” I always think of 1800 to 1899.
Seen those videos and it is well documented that the rounds, be it CCI, SuperX, Lapua, SK or Eley, come off the same line at their respective factories then tested and assign a grading. However, I’ve seen some pretty good matches shot with SK Standard + (as in second place out of forty-three shooters) so one never knows,