[oldkim]

Stick with your issued 357Sig - you have tons of (free) ammo and this is good since you actually carry the firearm (for work).

Although you can always switch to 40S&W with a drop barrel (same magazines and frame).

If you want to invest and use your own money (meaning buy ammo) then you have all the world to choose what gun, etc.

Although you can just buy and use a "softer" shooting 357Sig round (versus the carry rounds you are issued).