Not only were these rifles in close to perfect condition but they had apparently been given some serious TLC. These were not run of the mill surplus rifles. All three were a really treat to handle and shoot.
Of the three, I liked the Mauser the best, thought it was hard to choose. That bolt action on the Mauser was silky smooth. Once unlocked, I'd say that the bolt was as smooth as my Ruger M77.
While he had surplus ammo for the Mosin and the K31, he had hand-loaded ammo for the Mauser (maybe loaded down a bit). So the Mauser was the gentlest of the three to shoot.
The K31 was unique with its straight pull action but the action was not as smooth as I expected. Also you had to make sure that it shut all the way by bringing the bolt forward smartly. I think the K31 would easily be the most accurate.
The Mauser was no slouch in the accuracy department, though.
The hex receivered Mosin has also been worked on. The bolt is actually smooth (hard to believe) and it didn't take a sledgehammer to unlock it. Ed had worked on the trigger and the trigger was great (even harder to believe), better than many commercial rifles that I have fired. So, compared to other Mosin rifles, this one was great to shoot.
The 98K Mauser
The Swiss K31
“Never give in, never give in, never; never; never; never – in nothing, great or small, large or petty – never give in except to convictions of honor and good sense” — Winston Churchill, Oct 29, 1941