I have a stainless/walnut No.1A in 30/30 that has the same problem. It is noisy enough to scare deer away. As of now it is still unfired. I’m assuming someone missed the sloppy fitting in quality control. I have left it unfired and will ship it back. Ruger said ship it back, I’ve just been procrastinating to do so. I’ve checked many no.1’s for this and all the others are much better fitted.
The wood on mine is nothing special so if the rifle were to be damaged in shipping I’m sure Ruger would make it right.