Originally Posted by fernando
Two things surprise me Jean-Luc; your taste for such 'vulgar' pieces and how you manage to measure the bore with the pied a coulisse in that position ... like reading 16,9 mm
I bought it because with this very heavy barrel & big diameter this gun is out of the ordinary.
And so could stay in my heterogeneous weapon collection.
as explained by Fernando K you have to add 1cm to have the inside diameter.