Old thread brought back, but around here, no. Currently, our primary on duty is restricted to Sig only in 40 or 45. If we carry the Dept issue DAK Sig, then the Dept maintains it. If we carry a personal Sig, then we maintain it.
The list for off duty & backup is much more flexible: autoloader rounds are 380 for minimum; revolver rounds are 38 Special minimum, non magnum rounds are good, and 357 Magnum. If we choose something other than 40 S&W or 45ACP, then we buy the (approved) ammo. We maintain our personal pistols. Brand names and approved.
Performance is pretty much related to range time and budgets (Dept or family).... Real life....