The other thing that bites ruger is that stupid slanted front screw through the recoil lug. Functionally there is nothing wrong with it, but it is appropriately cursed by stock makers.
When making a custom M77, why not change it to a vertical screw?
Bruce
Custom bottom metal and major modification to action....not likely to happen.
Now, if someone could develop a 1 piece bottom metal...then you got something!