While that sight exemplifies ruggedness and simplicity, I'm a bit turned off by its lack of windage adjustment. A front sight can be fairly easily manipulated for elevation, but unless sitting in a dovetail, its not always possible to adjust it for windage. Since I'm being picky here, I'd prefer a larger aperture. 9.3 Mauser, you might be right, but that cartridge appears to have a pretty sharp shoulder for a .375, I assume you have the H&H in mind. Too bad the bolt wasn't all the way back in order to give us a better look. One thing is for sure, if the rifle belongs to an, it will be loaded with factory ammo, and 9.3X62 ammo with nickled brass isn't particularly common.