You should see the port flash I get with my .357 mag. when running my 296 / H110 loads through her, it looks like an alcohol funny car day or night. If this is a duty pistol, I would just switch to a non ported firearm. My Son and his wife to be both shoot .40 XDM's with my HS6 or Longshot reloads. Although I haven't noticed any muzzle flash during the day, but I haven't seen what it looks like in the dark yet either?
I may be mistaken, but I don't think LEO's can qualify with or carry reloads. So I have to ask the same question as Bovice regarding posse. Duty pistol and posse, kind of don't go together. Are you referring those groups that patrol the US / Mexico border? Please elaborate, as you have my curiosity up now.
GS