I have a 2016 .25 Condor that has the high flow factory valving but not the most up-to-date factory valving. Quite honestly it likes all pellets and slugs I have given it from as light as the 25 gr JSBs to as heavy as 60 grain cast slugs from NOE, with power ranges set from 45fpe to 110fpe. It loves all Neilsens I have tried. I think the LW barrels that Condors have are super.
A big trick to keeping the Airforce guns accurate is to make sure the spin loc tank is tightened down very tight. If you can loosen it by torquing it with your hand with heavy pressure, it isn't tight enough. It isn't enough to just trust the set screw to keep it in place. If the tank isn't super tight, the gun's frame will flex during the shot and you'll never get a consistent POI. On one of my Texans I am experimenting with blue loc-titing the tank in place and that seems to have stiffened it up well.
