Braun & Bloem 320


#1

What are metric designations for this calibre?


#2

There are two versions, short and long with large tolerances according to their case lenght, 14.7 to 18.29 mm for the short version and 16,5 to 20,5 mm for the long version. Elongated cases for shot loadings exist

Anyway these are the metric designations I found on a book:

320 Short:

7 x 16 mm , 7.5 x 16 mm , 8 x 16.5 mm

320 Long:

7 x 19 mm , 7.55 x 20 mm , 8 x 19.5 mm


#3

Thanks, Pivi,
I am measuring 8x16, so you can see why I am puzzled.