Czech ammo, commercial loaded (S&B) or military, is good stuff.  I have used it and I like it. 

 

One bad experience.  Steyr (Austria) did import a batch of 7.62x39 back in the early 1980s (when 7.62x39 was not as common as today) made in Czechloslovakia.  This ammunition carried the Steyr brand name.  It was Berdan primed and brass cased -- and corrosive primed!  I found that out the hard way when I shot some through my SKS and cleaned it as I usually do for non-corrosive ammo.  Three weeks after cleaning I went to open the bolt on the SKS and it wouldn't budge.  I had to open the bolt with a smack on the bolt handle with the heel of my boot.  I then found all sorts of green, corrosive gunk inside my SKS!  Fortunately, the SKS was designed to shoot corrosive ammo and all its critical parts are chrome plated.  Nothing was hurt and everything cleaned up without a problem.  All of this stuff has long since been shot-up -- I hope.

 

Current Czech ammo is non-corrosive and may be either Berdan primed (throw-away) or Boxer primed (reloadable).  If you can get Czech ammo in your caliber, give it a try.  Your pet firearm may just love it. 

This is Sellier and Bellot 32 Auto 73gr. FMJ ammo. This ammo is manufactured in the Czech Republic and is supreme quality ammunition. This ammo is boxer primed, brass cased and non-corrosive. It will function in all weapons and is extremely accurate. It is sealed for moisture protection and is packed in oil resistant boxes for extended storage life. This ammo will not corrode in the boxes, like other commercial ammunitions, during long storage periods. This is 100% new manufactured ammunition.*

*From Ammunitiontogo.com