Great link , very interesting.
Looking at the results , it's now to worry about - the jsb 14.3 make the most power with the 10.0 zink 2'nd and 21.1 cuda 3rd ,with not much between them .
I've tried the hn green 177 at 5grn , out of hw,aa and bsa , never anything other than unremarkable with poor bc.
Also tried 10.grn Thunderbolts , I think they were a pax pellet . Best results from 22 hw barrels, around 3/4 inch ete at 25 yards. Not good but ...