I'm always ready to show off my custom Ruger #1...
I am envious, what a beautiful rifle.
I have a Ruger #1 in 30-06, bought it in the 80's.
Now I wish I had bought the thing in something with more horsepower, such as a Win Mag, 375 H&H, or 416 Rigby. Or even 45/70. Somehow a single shot in 30-06 is just not enough rifle.
The #1 has a rubber but pad, the #3's I saw were hard metal. I would prefer rubber.
The action is very well designed. Very safe, no issues with gas escape into your eyes or gas escape causing the action to open.
I have heard on rolling blocks, a pierced primer will push the hammer back and roll the breech block open. Don't want that.
The only issues I have had is that my rifle strings vertically. About 2 “ perfectly straight up and down groups at 100 yards. You could draw a vertical line that would touch all the shots. I have tried the tension screw and that did nothing. Played with bedding the fore end, and that did nothing.
What the heck, it shoots well enough with cast bullets and is fun to play with.