I'm glad you bought it and delighted you like it. I'm happy any time anybody buys a #1, especially a new one. The more that happens the longer we will have it in the Ruger line up.
I'm just saying that it is a niche cartridge in a very niche rifle and it makes more sense for the intended purpose in things other than a #1. I have no doudt it won't punch holes in paper and kill lots of varmints.
On the other hand I don't look for it to be any more accurate or inaccurate than any other #1 in a bore efficient cartridge. One has to remember that the #1 is a HUNTING rifle and while many will shoot pretty good groups, not all will do MOA with factory ammo UNLESS you find the right load that the individual rifle likes.
Barrel harmonic are critical in a #1. As long as there isn't something wrong, pressure points etc. It should shoot okay but a range report from somebody that has one that shoots a specific ammo or reload doesn't translate to the next #1, even if identical from the factory, because they are each individuals unto themselves.
I have many duplicates in the #1s I own. It is very very seldom that a given BEST load in a rifle is also the BEST load in another #1 in the same cartridge and configuration. I own at least five #1s in 257 Roberts. None shoots the same load BEST. Some shoot the same load, WELL.
Cousin Wayne and I both own #1 "B"s in 17 Mach IV, They were both built and chambered at the same time with the same profile of Shilen barrel by the same gunsmith using the same reamer.. For all intent and purposes they are identical. When I worked up the best load for mine it ended up being a 25 grain Remington bullet with IMR 4227 and a Remington 7 1/2 primer. We tried it in Wayne's rifle and it shot about 7" patterns. His rifle has a definite preference for a 25 grain Hornady, H335 and a CCI BR4 primer.
Good luck and I'm sure you'll enjoy it, just from past and recent history, I don't look for it to be around a long time, at least chambered in the #1.
Ross