Guy is right - it is a .38 Military & Police.
With the info we have, basically just the serial number, there is no way we can know if this is a late Victory Model shipped to the Navy or one that shipped to a civilian location after the war. We see them both ways in this serial range.
For example, SV775333 and SV779251 both shipped to the Navy, the latter in a 1200 unit shipment that left Springfield for the Oakland Navy Yard on February 23, 1945. On the other hand, I have SV776161 that shipped to a civilian location in March, 1946.
SV802722 is the highest numbered Navy gun (Norfolk on August 13, 1945), but there are lots of them with lower numbers that didn't ship until March, 1946.
jachd17
If your friend has a wartime Navy gun, it will have the U.S. Property stamp on the top strap. That would be one way of knowing for sure. When you can, post pictures showing as much of the gun as you can, and we can try to figure out what it is.