I had one of those for many years...an old "salt wood" stock. However, I took care of the metal and it did not rust.The T-Bolt just catches people's attention and very few people have fired a straight pull bolt action.
The Swiss rifles are a lot of fun. My dad had a K-31 that he used in vintage rifle matches from time to time. I fired it a few times and thought it was a very nice rifle.I had one of those for many years...an old "salt wood" stock. However, I took care of the metal and it did not rust.
As for straight pull bolt action, I had one of the Swiss rifles also.