357 SIG isn't an especially "powerful" round; really no more so than 9mm +P or .40 S&W. 9x23 Winchester is considerably more powerful, but won't work in a gun that doesn't have a long enough recoil stroke to accommodate .45 ACP/10mm/.38 Super (>1.25"), such as the large-frame Glocks, CZ derivatives, and 1911s.
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