My somewhat limited experience has been that with binoculars and smaller spotting scopes is that bullet holes are easier to see with a lower magnification scope or binoculars of higher quality than with higher magnification of low quality. Most people know nothing about the story behind them and how good they are, dismissing them as just another cheap quality pair of binoculars, and pass them by with hardly a glance when seen for sale on a table at a gun show or flea market.
For example, I can see holes easier with my Zeiss 8x30 binoculars than with most 10 to 12 power optics of lesser quality.
I have 2 pairs of 7X Japanese “Occupation Binoculars”. One pair I got for $10 at a small outdoor swap meet, and the other pair I got at a gun show for $25, I think. Cheap price, high quality.
Occupation binoculars were supposedly made with the same styling and tooling the high quality WWII Japanese military issue ones were made on by mostly the same workers. Immediately after the end of the war, Japanese industry leaders were encouraged by General MacArthur, commander of the American occupation forces, to get Japanese manufacturing going again as soon as possible, channeling their efforts away from supplying the war effort and focusing on production of commercial goods for export sales.
The optical quality of these binoculars is as good, or almost as good, as some of my Leupold or Burris optics are.