RWH, that's a matter of opinion, you left out lots of calibers....try finding a .257 Roberts in a No. 1 or even a .308. Ruger always has had a history of discontinuing firearms in model and caliber.

It is red pad I do see that

Clarkfork is dead on.
The pre-prefix info RWH24 cited isn't relevant to anything in the last 30 years, pretty much. I can locate enough 375s and 458s with little effort.
"Reasonable price" is very subjective.
I've never known anyone who's owned a bunch of these to say any version of them are known for their accuracy. Google "Ruger #1 accuracy" when you have a spare day or two. One of the prettiest #1s I ever owned was a 243 1-B made in 1975. It would string any load you put through it vertically over 6". Fixed it by taking off the forend and installing a crush washer between the forend screw and the hanger block.
Jhenderson if you get it and don't want to keep it, pm me.

I can name you thee bench shooters that will disagree, as I, after 1974 some would shoot, some would not, that changed late 80's, bought & sold the ones that would not shoot for chit, the four that I sold a few wks ago were all 1968 models & would shoot 1" groups

I can name you thee bench shooters that will disagree, as I, after 1974 some would shoot, some would not, that changed late 80's, bought & sold the ones that would not shoot for chit, the four that I sold a few wks ago were all 1968 models & would shoot 1" groups

I copied and pasted what was relevant to the discussion. The 7mm Express/380 Remington