Are these actual safes ? Or are they residential security cabinets ?
If they are just the residential security cabinets that are marketed as “Gun Safes” for last 25 years or so, any thief worth his prison cred could be in them in less than 5 minutes only using the tools found in the burgled home containing the RSC.
Search you tube for videos.
If they are rated real safes, or high end brand RSC’s, they would be worth hiring a pro locksmith to open.