Has anyone investigated or heard of converting an older Ruger push feed / tang safety to a controlled feed like the newer guns?
At first glance it looks like you could slot the receiver for the ejector and either slot the bolt and cut the bottom shroud out or replace the bolt body with a controlled feed bolt. It couldn't be too bad; Ruger isn't known for making guns with difficult machining requirments.
A lot of work to be sure but that is what makes it a challenge! I have an older Ruger .458 RSC I would love to convert.