.22 ID help please

I got the 5 together described as Russian… These are steel cases (magnetic) The single has a K stamp.

Any info welcome please.
IMG_20181021_0001

Starting from the second Soviet Union,
how a pack could be seen here, your cartridges were equipped in the years 1930-1960
http://patronen.su/forum/index.php?action=gallery;cat=626;sortby=date;orderby=desc;start=0

And this is the cheapest version of equipment.

The raised “K” in an impressed dish is by Kynoch

Thanks Pete, I suspected it was Kynock.