Many thanks for the lovely comments gents which I appreciate. As regards ongoing, I am going to take a number of approachs;

- to get started, I have got two boxes of cartridges made up for my by Alan Myers, a noted specialist here. These are plastic clear Winchester cases which I will retain for future homeloading. One box of lead (black powder and for use inland and not on wildfowl)and one of non-tox suitable for Damascus barrels.
- I am going to get some brass cases made up specifically for the Paton to allow home loading longer term (once I have taught myself). I am an ardent traditionalist and like the option of bespoke brass, and at 12 per case, they are expensive but not crazy.
- I will longer term re-load plastic cases as well.

Ultimately, I don't anticipate using the Paton heavily as I don't have a lot of chances to get out during the season, but equally I purchased it to use it! It would have been silly for me to have got a solely goose-gun as I generally shoot duck mostly, so this gives me the best of both worlds. The day I use it to get my first pinkfoot will be a proud moment, no matter how long it takes me smile