I have an Israeli K98k chambered in 7.62. On one side it has the Nazi Eagle waffenstamps, and on the other it has a very crude Star of David. The receiver was manufactured in Berlin in 1938, so I know it had to see some action in Poland against the Poles, French and Brits. It has possibly shot at Americans, French, British, Polish, Soviets, Egyptians, Syrians, Iraqis, Arabs and at some point even Nazis.
So, what's the problem? It's a gun. It's history. Mine has seen at least two wars, for sure. The souls of it's slain do not reside in it's steel and wood. No evil spirits come out of it when I fire. I don't feel the overwhelming desire to murder kittens by the bag full when I fondle it. It's an inanimate object with markings that prove its history and I enjoy owning it.
The souls of its slain, probably not. But with a K98, like ANY of my surplus firearms, I have to wonder about the folks that used it, cleaned it, gripped its stock tightly and closed their eyes, enduring the circumstances of their time. My Garand was made in '42, I picked it out of many at the CMP, because I wanted a wartime Garand. I have a 1937 K98 with Weimar eagles and Nazi proofs on it. Think it has seen some history? I'd be willing to bet it was used by some 18 year old kid, fighting for his country, probably used by several soldiers before the end of the war. I wish it, my Garand, my M-39 could all talk.
I've got a 91/30 also, hardly used, only dropped once.