I have one identical - also marked 1959. Here's a few things I learned about it from the gunsmith who refinished it, not that yours seems to need any attention in this respect :-)

The un-blued extractor, the straw brown part, has either been expertly refinished or is original. Most of them get refinished in blue, unless they're removed and often they break if they are. The un-blued raceway where the left-hand bolt lug passes also points to it being not being re-blued. They can be "washed out" when they are re-blued to prevent this, if the person doing it thinks about it.

My .270 when it was reloaded produced some quite disappointing velocities, several hundred feet slow in all loads. It might be down to some factor, like throat erosion or it could be due to long throating. What I do know is that it will perform like a new one if I use W760 power and 130 grain bullets with published data, (no over-loads). In fact, I have an American Rifleman test done on a factory new, short-barrel, full-stock carbine Mannlicher in .270Win. I think it was a M72. The 130g factory loads chronographed 2,950 fps. Mine are just a bit behind that - but only with W760.

Not much else to say. It's accurate Looks great and the Monte Carlo works well with iron sights.
Enjoy your nice rifle.