Brian Rothhammer
AH fanatic
For smooth, I have a Mannlicher Schoenauer 1910 9.5x57, tip the muzzle down and the open bolt will close under its own weight.
Ah, yes. The ol' MS 'smoother than snot' bolt trick.
My M1910 does it as well; the machining tolerances and overall balance of the MS is legendary for good reason.