[Michael Zeleny]

The 9mm SIG P210 is somewhat less accurate than the 7.65mm W+F 06/1929. When both are chambered for the same round, the difference is negligible. In over three decades of shooting I never found a 4" 9mm Luger that could be relied upon to cycle any commercial load, out of any available magazine. The cannon assembly of the P08 is far too light to handle the recoil impulse of the standard 9mm load consistently, with any reasonable springing arrangement. Modest improvements realized by lengthening the barrel or narrowing down the bore to the original 7.65mm dimension cannot suffice to adapt Hugo Borchardt's toggle action design to modern military service. Sooner or later, almost every autopistol manufacturer reverted to the Browning lilting barrel, short recoil design. The Swiss were ahead of the curve in 1947.