It'd be the T/C contender in .218 bee or Dan Wesson 15 in .357 mag.
If by pistol, however, you meant to say "semi-auto pistol", then it'd be the Buckmark.
If by pistol, you meant to imply "centerfire semi-auto pistol", then the answer was, is, and always will be, the CZ 75 full sized (& variants).