Perhaps it's an easy path to get the 6.5x284 shooting well. H4350 might be perfect for it.
And as brought up earlier, H4350, and IMR4350, have different burn rates & so different fill for any particular cartridge adjusted to tune..
There is also a possibility of group thinking(herd mentality), which generally results in little to no independent judgement. A collective intelligence inversely proportional to numbers collaborating.. /momentum
I'm sorry. What was the point again?