Swissrifles.com has a lot of information, history, use and handloading, on the K31 and other Swiss rifles. They’ve got a translation of the user manual for the K31 and K11(pdf file), tech info, takedown/reassembly, ammo types and id, “Do not do this with your rifle”* list and so forth. Including this chart on figuring lead on a moving target:
And this list of training objectives:
And here are the targets:
The 300 meter targets are 55cm high by 45 wide for the head/shoulders, 165 by 45 for the full-body. That works out to about 65” by 18” and 21.5” by 18”.
The story is that before WWII broke out, one of Hitler’s staff, Himmler I think, was on a state visit to Switzerland. Reviewing a unit drawn up for inspection, he asked his escort how many troops the Swiss could muster.
“About 500,000, sir.”
“What would you do if we invaded with one million troops?”
“Each of us would have to shoot twice, sir.”
If it’s not true, it ought to be
*The sad thing is you have to figure people actually did some of these things to cause them to be listed as a “Don’t do that with your rifle, dumbass!” list.