I too have an old box of them but have not tried them. I did shoot some of the loaded ammo back in the day from a bubba'ed 303 enfield I bought from a guy that worked for my dad and a buddy found several boxes for a 6.5 x 55 he has. The loaded ammo shot very well but the 6.5 was very slow as in 30-30 types of speed. I believe the ammo came out of Finland iirc.
