Yeap, Joe, it was magnum double, but chamber 2 3/4". It was made on 28g receiver, but weight was about 2500 gm, too much for the 32g rat gun. That's why I used it at full speed and according maker recomendations.
Once I shot down wood grouse (capercaillie) from it, shot #1.
Actually there is one story "Tchijoff's Cartriges" by Liverovsky, where young man shot brown bear from 32g single barreled gun, one clean slug shot at bear den. His father could not do it from 12g double barreled gun, cause he bought cartriges more 60 years ago in Tchijoff shop...


Geno.