Santa Barbara de
Industrias Militares S.A.
From my limited knowledge of language, I make it out to read something like
Spain's national military industry
jacketed or semi-jacketed (maybe softpoint)
On the sides it says TETRINOX NO CORROSIVO NO EROSIVO.
I can't read TETRINOX - I think it may be a proper noun - but it claims not to be corrosive.
My gunstore has a whole lot of this at about $6 per 25. Is it worth it, and what does it shoot like?