So you should destroy your stock by soaking it in Varsol TO CLEAN THE BOLT?
Never saw a K31 in cosmoline, ever.
Strip and inspect if you want, will not require traditional red rifle type cosmoline cleaning.
Bolt will have brown grease, it's supposed to.
Clean bolt and re grease (not oil). Again, its supposed to have light grease. I use white lithium.
Learn to ignore sunray.
Unless you have fresh 'waffenfett' - unlikely, unless the cleaning kit came from Guisan on swissrifles.com - I'd use any of the modern LIGHT greases. The Swiss have not oiled their military firearms since the middle of the 19th century - a light grease, called 'waffenfett' which simply means gun-grease, is used immediatley after shooting on the inside of the still-warm barrel - a good dollop on a patch and ten strokes. The rest of the moving parts get a light wipe-over, with attention being paid in particular to both sides of the operating rod [that's the flat bat connected to the bolt knobs] and also where it moves in the bolt cam track.
Before you shoot next time, push the barrel through to clear out the old grease, and go shoot it.
Repeat.
Just like somebody repeated on my 1914 K11, leaving it with a barrel with no measureable wear in spite of a gazillion rounds of GP11 down it. And my K31, forty years later.
I've been using Shakespeare spinner reel grease since around 1989, it's about the same weight and colour as waffenfett - my ten-pound can of the stuff is hardly touched yet.
Anyhow, if you use any oil on that Swiss gun, me and diopter will come a'lookin' for ya. ;=)
tac
For the moving part, do I need to disassemble the bolt and grease it a little?
You said any modern light grease, can I use white grease (spray grease)?
yes, yes, but I recommend white lithium grease from a tube, bought mine at CT in the auto section.I am not an expert, however I did fully disassemble and clean the bolt on my "new" K31 before it's first use.
As for grease, a light application of an NLGI #2 rated grease on the op rod and lugs has worked well for me. (On semi-autos too)
A tube of this should last a lifetime.
Late to the thread but I'm going to ask why grease versus a good gun oil like frog oil or the standard Hopps gun oil?
NOT ANY kind of spray grease - you know what water pump grease looks like? Bearing grease? Yellowy gooey stuff?
I'm certain I wrote something about Shakespeare spinning reel gear grease somewhere, or did I imagine it?
A LITTLE of this light yellow grease [I DID note that, didn't I? See post #8] in the cam track is good. Not gobbets, just a smear off the end of your finger is enough.
Grease is why Swiss barrels - even - a 120 y/o - look the way they do.
tac
www.swissrifles.com
Yes I did see it, I was asking if there was other good brand of grease in case I don't find the shakespear one. I will try to find the shakespear stuff.




























