Hello,

All the Mauser action in my rifles are really smooth. As 93x64 say, tilted the action back, the bolt pull a cartridge along with it and eject it:

Mauser 1935 Argentine contract Mauser-Werke made.
FN 30-06 from the sixties. Marked under the barrel " FN-Akah"

By the way my BRNOs ZKK are also smooth, may be a little less than these Mausers, but very smooth anyway. They are, in that order:

ZKK 600 9,3x62 with peep sight made in 1967
ZKK 601 308W with peep sight made 1977

Feed, extract and eject flawlessly!

I bought the 601 new, in 1978. Back then, I remember very well, the action was somewhat rough no matter it function without any flaw. I polished by hand the rails and the inside where the bolt run and it improves a lot. With the use after a couple of years almost all the roughness disappeared.

The 1967 I bought past year, old but with very little use, is clearly better polished and finished from the factory!! It feeds and eject 5 empty cases...