Links
The International Ammunition Association.
This is an excellent resource and membership includes six full colour Journals per year. there is a very active Forum on all aspects of ammunition.
Full details here: http://www.cartridgecollectors.org/
European Cartridge Research Association
Membership includes a twelve journals per year. The UK group meets twice per annum at Bisley and once in July in Lincolnshire. The annual international meeting rotates between Holland, Germany and Switzerlad. In 2013 it will be in Holland.
Details here:
http://www.ecra.info/start.php
The British Ordnance Collectors Network
An excellent on-line forum covering all aspects of Ordnance. Click the box below.