During the American Forces tests for a NATO pistol the most accurate was the SIG-Sauer Pi18. The slide runs inside the frame, so there is no barrel movement. Too pricey for the Quartermaster-General so he settled for the Beretta 92S, adopted as the M9. The American Army still want to go back to using 45acp. May not be quite as accurate but it's one round drop at 25 yards. 9mm Parabellum takes two to give 90% probability of a drop. The most lethal, drop down dead, pistol round ever was the British Army Manstopper. .455 cal, cylindrical, flat ended, soft lead, 250gr, 650 fps m/v.
Ric.
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