This is an unusual request but I am looking for cases with a neck diameter of between about 8mm and 10mm. The 9.3 x 72 looks perfect.
The purpose of the cases is to make cutters that I will use to cut foam cylinders. The foam cylinders will be used to tie "booby" flies. I will need to cut the base off and sharpen the neck. The 9.3 mm case looks excellent because it is the right diameter and doesn't have the bottle shape of modern cartridges.
Those of you who tie your own flies will know exactly what I mean. Those who don't may think I'm a bit daft.
I'm happy to pay for the cost of the cases and postage. I only need one or two.
Thanks for your help.