Originally Posted by JEV
Agreed, but the lead ball has a better BCthan the ping pong ball. If you take a typical .22 pelet it wil have 50% more frontal area but 85% more weight which explains the majotity of the better BC.
Yep I think we're saying the same thing two different ways.
If you had a .22 and a .177 of the same mass, the .22 would have a worse BC than the .177 and thus the two pellets could not have exactly the same trajectory as a previous poster suggested. Of course in the real world (generally), the higher mass of .22 pellets give them better BCs than .177 pellets.