I do have Marine docs of them buying the Weaver 440 for the 1940 Sniper trials. I wish i had the same for the A4. It would be nice! But there are still so many more sniper docs at the archives to go though. Hard to know what is in there.
I do have some neat docs on them really considering doing a thumb screw for the scope mount. So the scope could be taken off with your fingers.
The reason being a lot of the field reports were begging for the ability to take off the scope as they were prone to breaking and they really wanted some type of iron sights as backup.
Then even explored creating a field case for the Weaver scopes to be stored in. Sort of like the WW1 era snipers.