That is one beautiful rifle! I do not own a Number One but may have to with that particular configuration. I have always liked the full length to the muzzle stock since handling a German made rifle when I was a kid.
Some people sit on $.05 of knowledge like it is the treasure of Egypt. I will teach anyone $.10 worth just to prove a point...
That is interesting they are going to do a .375 Ruger in an RSI !!
In 1989 Jerry's Sports Center tried to get a .358 Win. done in a 77RSI and nothing worked out for that to be in an RSI, so they turned them into a RLS Carbine instead.
Went back and looked at my K1A .250 Savage post above. Even though the date of the Shot business page says June/July 2019, the fine print at the bottom of the article says 2012.
Chet15