I believe there could be a velocity "wall" regarding resistance. But, is it unique to each bullet weight ? What single factor or combinations of factors in the design minimizes or maximizes it, or neutralizes it ? All beyond my level of investigative capabilities.
Super-Penetrator Imaginary Bullet:
The CEB Safari Solid is about as perfect as yet to be found, according to the MIB tests, but still questions remain about that asymptote ...
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.