I’m running 41 of RL16 , 450s , 15 off at 2800
In my creed ,24” barrel 40 rds fired , I just loaded those to break in the barrel until it speeds up.
My 25 dasher was what needed 90 off to shoot , good news is the AB Doppler confirmed .334 G7 and .7 bc variation so a great bullet if you can...