This requires psychic debugging, the size of a section isn't affected by RVA. The crystal ball says that you are actually looking at two different files. And your PE dumper utilities are 32-bit programs that you run on a 64-bit operating system.
You have to understand the File System Redirector. A 32-bit process will be redirected from c:\windows\system32 to c:\windows\syswow64 and from c:\program files to c:\program files (x86). So your PE dumper utilities could well be opening the 32-bit version of an executable instead. And yes, the .text section will be substantially smaller.
Copy the file to a directory that's not affected by redirection, like your Documents folder.