Let’s assume same gun shooting same PSI how much faster would a pellet that’s 20% lighter shoot over the heavier pellet?
Had the question been phrased directly with those ammo weights I could have answered that. Done those tests many times and yes the 18’s are always just about 100 fps slower.I will answer my own question, I rigged up the chrony this morning.
18.13 = 843 fps. JSB
14 gr = 943 fps CPHP
Just in case inquiring minds want to know.