Re: zastava m57/ tokarev 7.62x25
As far as lethality, the 7.62 x 25 has probably killed more men than any other small arm, this is because a majority of about 6 million Russian soldiers carried the PPSh-41 as their primary weapon through about 3 years of war, and Germans carried it too if they could find one. It considerably outranged the 9mm MP38/40 and far more firepower than the 98K at combat ranges. It also was the incentive for the German 8mm Kurz automatic rifles. If one could generate the data, he might find that tha 22LR rimfire has killed more, having been universally available for more than 120 years, but not in a military sense.