SOME TECHNICAL MILITARY HISTORY LINKS
Guns + Ammunition
http://www.ecra.info/start.php Home Page of the European Cartridge Research Association
http://www.cartridgecollectors.org/ Home page of the International Ammunition Association
http://www.rkba.org/guns/principles/ principles of operation of firearms
http://people.howstuffworks.com/machine-gun.htm descriptions of how machine guns work
http://www.eskimo.com/~jbm/calculations/calculations.html small-arms ballistics calculator
http://cartridgecollectors.org/headstampcodes.htm IAA headstamp codes for small-calibre cartridges
http://web.ukonline.co.uk/stephen.johnson/arms/ Treatise on British ammunition and ordnance 1880-1960
http://world.guns.ru/ Max Popenker's excellent site on modern firearms and ammunition.
http://www.geocities.com/russianammo/ Russian ammunition 12.7-57mm: very detailed
http://freespace.virgin.net/ordnance.society/index.htm the website of the Ordnance Society
http://members.tripod.com/~nigelef/index.htm British artillery in WW2
http://www.military-info.com/MPHOTO/P110.htm copies of US military ammunition manuals for sale
http://www.conjay.com/Collectors.htm Conjay Arms Co's catalogues for purchasing collectors' ammunition
http://www.globalsecurity.org/military/systems/munitions/ammo.htm explanations and lists of current military ammunition
http://www.cartridge-corner.com Curtis Steinhauer's site for ammunition collectors
http://dragonsoffire.com/home.htm Japanese automatic weapons
http://www.inert-ord.net/ site of an ordnance collector
http://www.chuckhawks.com/index2.guns.htm Chuck Hawks' firearms page
http://www.globalsecurity.org/military/systems/index.html Global Security site, as above
http://www.dtic.mil/ndia/ Index of downloadable presentations from the US National Defense Industries Association conferences
http://www.accuratereloading.com/ commercial cartridge reloading data
http://ammoguide.com/ cartridge identification guide
General Military
http://metalab.unc.edu/pha/index.html WW2 source material index
http://www.defense-aerospace.com/ news and information about current defence issues
http://www.strategypage.com/ as above, but with a more subjective slant
http://www.fas.org/index.html the Federation of American Scientists site, which contains much detail on current US weapons
http://www.sinodefence.com/default.asp Chinese Defence Today - with details of equipment
Aircraft + Armament
http://users.telenet.be/Emmanuel.Gustin/fgun/fgun-in.html Emmanuel Gustin's fighter gun website
http://www.canit.se/~griffon/aviation/text/sv_akan.html Urban Fredriksson's site on Swedish aircraft cannon.
http://www.skomer.u-net.com/projects/start.htm Chris Gibson's site on United Kingdom postwar aerospace projects (including guns!)
http://home.att.net/~C.C.Jordan/ CC Jordan's Planes and Pilots of WW2 site
http://www.aviation.ru/ Russian aviation site
http://www.acig.org/ comprehensive lists of post-WW2 aircraft successes in combat
http://aeroweb.lucia.it:80/~agretch/RAP.html Russian aviation site, with many links
http://www.cloudnet.com/~djohnson/ 'Gunfighter's' site on the F-8 Crusader
http://incolor.inetnebr.com/iceman/ Butch Lottman's site on US Army attack helicopters
http://gunsagogo.org/ Frank White's site on the ACH-47 'Guns A Go-Go'
AFVs + Armament
http://www.battlefield.ru/ WW2 Soviet and Allied tank guns AP performance
http://homepage.ntlworld.com/bob_mackenzie/Armour%20Values.htm armour values for WW2 tanks
Warships + Armament
http://www.navweaps.com/ The outstanding naval weapons site, containing detailed information
DISCUSSION GROUP SITES
Guns + Ammunition
http://forums.delphiforums.com/autogun/messages/ the author's site for discussion of all topic relating to military guns and ammunition, with much information about aircraft armament in particular
http://cartridgecollectors.org/forum/index.php IAA cartridge collectors' forum
http://www.bocn.co.uk/vbforum/ British Ordnance Collectors Network: the best UK site for collectable ammunition discussions
http://www.gunboards.com/forums/ Gunboards forum, concentrating on small arms for collectors.
http://www.ar15.com/forums/index.html AR15.com site, with various forums mainly covering military rifles and ammunition.
http://www.thehighroad.org/forumdisplay.php?s=&forumid=6 The High Road, discussions on rifles, military and civilian
http://www.wk2ammo.com/ the German WW2 ammo site (bilingual, but mostly in German)
General Military
http://www.defencetalk.com/forums/ Defence Talk Forum, for general military discussions
http://forum.axishistory.com/index.php?sid=9273bffe15ea4362621a165986b92384 WW1 and WW2, but covers wider topics also
http://www.china-defense.com/forum/index.php?act=SC&c=1 China Defense forum, particularly strong on Chinese military equipment of all services
http://www.network54.com/Forum/330333/ The Overvalwagen forum, specialises in Dutch military equipment history and other obscure items!
Aircraft + Armament
http://forum.12oclockhigh.net/ Luftwaffe and Allied air forces discussion group
http://www.theaerodrome.com/forum/ First World War aviation
http://www.s188567700.online.de/forum/index.php air combat discussion group (post WW2)
AFVs + Armament
http://208.84.116.223/forums/index.php?&&CODE=00 TankNet: a group with some very good contributors on tank development, plus other aspects of military technology
Warships + Armament
http://warships1discussionboards.yuku.com/ Warships1 site, with discussion groups on warships but aircraft and land forces also