An argument for the coilspring action is that if you are willing to mess up an original you can bore and thread the front face for a forearm strut and free float your barrel. I do not know anyone who has ever done it but I have thought about it ... Today it would make more economic sense to use a clone. Another stunt is one that Tom Burgess actually did, he bored out and rethreaded a frame so he could make a 7mm Remington Magnum with decent chamberwall thickness. It is generally accepted that the HiWall is the strongest of the classical American SS actions - see Buhmiller's blowup afforts referenced by JDS - and IMO it is also the most versatile.
