Nice Gevarm and Mossie - remember looking at one of those 377s. The early Savage/Stevens semis included what was sometimes called a 'click-clack' action - the bolt remained open until trigger pulled, then returned to open position. I could be corrected on this.
I did not know the Remington Nylon came out in the model 12 bolt action - just for couple of years it seems. Nylon 66 was very early for polymer stocks - 1959. I did have an early Remington 600 - the 18" barrel shortie in 243 that immediately preceded the Mohawk and 660. That was a pioneer too with plastic polymer trigger guard, plastic vent rib etc. Loved it. Very accurate and superb for northern bush. Wish I'd never sold it - be nice to have one now in 222.
Bookmarks