Well it seems not all is lost in regards to the Ruger #1.
The Ruger website now lists 6 different models, 1 caliber per model.
All are Lipsey's distributor exclusives.
Model, caliber
1A 7-08 Remington
1V .223 Remington
1RSI 6.5x55 Swedish
1B .257 Weatherby
1S .30-06 Springfield
1H .375 H&H Magnum