A Little of This and That
Range gear has a use and isn't always just some fancy thing to show off. The use of single loading devices in the M-1 is about safety as not to drop the bolt on a loaded chamber.
Spotting scopes are abundant these days and there isn't any reason to go out and spend a lot of money on one for your use. Shop around and save your money for loading components. A cheaper scope may have all the features you need.