Can someone help me date this rubi revolver since I found out after like a hundred shots with 38 special that it 's a 38 largo! Went back with the gun an the dealer says he was sure it was a 38 special and the previous owner shot 38 special all the time! The 38 special I used has 380 ME and the 38 long about 220 if I'm right and may compare the 38 largo with 38 long. Found a rubY in one of my books that looks a lot like mine but is rubi and ruby the same and this gun would be dated around 1950-60? Would it be safe to shoot 38 special wadcutter (about 180 ME) since I already shot about a hundred 38 specials of 380 ME? The markings say ; Rubiertra m.r. industria argentina, establamentes ventrini s.a cal 38 largo, acers de alta pesistensia.
thx a lot