It's funny the difference in perception between shooting disciplines. In short range small group of the match is seen as kind of a fluke or a newbie award! It's often won by new shooters who tune when there isn't a breath of air AKA the New Guy! Consistency is considered King. Which is the aggregate in short range.
That one 30 caliber group comes up a bunch. To me it's just like the other small group records, "a fluke" or a "happy coincidence!" However all other NBRSA group and agg records are held by the 6PPC. I'm pretty sure all IBS group records are held by the 6PPC.
As for all the 300 yard group matches being held in the morning for ease of conditions. Thats not the case at the 300 yard matches I've gone to. You shoot for two days and 4 aggregates. So you're going to get one in one in the morning and one in the afternoon. Score matches may be different.
I've set two world records at 300 yards. This one in the Light Varmit and also the 300 yard 10 shot 5 group Unlimited. Both of course with the PPC. I don't see a Dasher or a 30 BR beating that any time soon.
Bart