and there is a member here who did a build like you're talking, I'll look and see if I still have his PM from a couple years ago when I bought my 256, he had some good info.
Penndog is the one who did it, this was his advice "I really like the combo....the BIGGEST limitation is C.O.L. in the Ruger magazine - other than that it is great fun! I would keep the C.O.L. in mind with any build and the Martini would allow the greatest flexibility in that department. It would be a really good starter rifle for a young one and with the "right" bullet I would not be afraid to use it for deer sized animals."
probably wouldn't hurt to shoot him a pm if you want more info, he was very helpful for me, I settled on the 62 myself, but I would love to do one like you're talking.
