What is the length of the barrel's from which data was obtained for the .22lr and the .25 ACP.From what I have seen,typically the .22 data is from a rifle barrel and .25 data from a 3-4" pistol barrel.With comparable barrel lengths,the variation may not be that much.Also,a .25 pistol will be less prone to jams than a .22 pistol.
From where do you get such cheap .25 ammo.? Is it fresh ammo?
Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their consciences.