Have it drilled and tapped by a good gunsmith.
Yes
Yes
No, it was not.
To mount a Nikon Monarch dot scope on a Winchester Super X2 NWTF shotgun, you'll need a Weaver-style base that fits the shotgun's receiver. The appropriate choice would be a Weaver base specifically designed for the Winchester Super X2. Look for a base that offers a secure fit and is compatible with the scope rings designed for Weaver-style mounts. Always ensure proper alignment and torque specifications when installing the mount.
you have to make one
It most surely does on a pre-1964 made Model 94.
I dont find any reference to a WesternField Model 35 as a shotgun. The Model 35 rifles were made by Mossberg... If you can send us a digital picture of the gun, we can identify it for you and give you direction on how to mount a scope. repair@countrygunsmith.net
Talk to a gunsmith. There is more than one way.
The Winchester Model 250 typically uses a 1-inch scope tube, and it generally requires a scope mount that fits standard 1-inch rings. The specific mount style can vary, but many users opt for Weaver or Leupold-style bases. It's essential to verify the exact model and year, as specifications may vary slightly between different production runs.
The Ithaca Model XL 900 typically requires a specific type of scope mount designed for its unique receiver and rib. A common choice is a one-piece mount that fits the shotgun's specifications, often referred to as a "shotgun scope mount." It's essential to check compatibility with the model and ensure that it allows for proper alignment and stability when mounting a scope. Always consult the manufacturer's guidelines or a knowledgeable gunsmith for the best fit.
Talk to a gunsmith. There is more than one way.
Typically, a 2.5 to 4 power scope. You may need an offset mount, since the 94 ejects through the top.