PRINCIPAL HEAVY MACHINE GUN CARTRIDGES

   In approximate order of appearance: 12.7x99 (.50" Browning), 12.7x81 (.5" Vickers V/580), 12.7x81SR (.5" Vickers V/565, 12.7mm Scotti, Breda-SAFAT, IJA Ho-103), 13.2x99 (Hotchkiss M30, Breda M1931, FN Browning, IJN Type 93/Type 3), 13.2x96 (Hotchkiss M35), 12.7x108 (Russian; also Chinese HMGs), 15x104 (Czech vz/60, aka British Besa), 15x96 (German Mauser MG 151), 13x64B (German MG 131, IJN Type 2), 14.5x114 (Russian KPV).

EXPERIMENTAL & LIMITED SERVICE HEAVY MACHINE GUN CARTRIDGES

   AMENDED 6 JUNE 10

12.7x99 (for scale), 12.7x110 (.50 North or Colt-Kynoch), 13.2x92SR (the original German TuF Maxim HMG of 1918, of which c. 24 were built), 12.7x120SR (Vickers Class D HV, saw very limited use), 12.7X108R (ShVAK HMG: few were made before it was converted to 20mm), 13.9x99B (.55 Boys ATR round - proposed for Rolls-Royce aircraft MG), 15.2x114 (US .60" T17), 12.7x114 (US .50/60"), 12.7x120 (US .50" HV - from 20mm HS.404 case),  16x99 (US 16mm Vega exp), 13x64 (exp rimless version of MG 131), 7.92x82B (exp necked-down MG 131), 13x77B (replica exp HV MG 131), 15x69B case (exp necked-up MG 131), 13x92B (exp MG 215/13), 15x83B (exp MG 215/15), 15x115 (postwar FN BRG; early pattern based on HS.404 case), 15.5x106 (FN BRG late pattern - based on KPV case)

EXOTIC EXPERIMENTAL HMG CARTRIDGES 

12.7mm Hughes Lockless (sectioned, to show telescoped layout), .50 ARES TARG (telescoped, plastic case: this project was recently revived), .50 TROUND (for open-chamber gun), 12.7x99 (for scale)

20mm CANNON CARTRIDGES TO 1945 PART ONE  

20x70RB (Becker), 20x72RB (Oerlikon FF - aka IJN Type 99-1), 20x80RB (German MG-FF/M), 20x82 (Mauser MG 151/20), 20x94 (IJA Ho-5), 20x99R (ShVAK), 20x101RB (Oerlikon FFL- aka IJN Type 99-2), 20x105B (Solothurn S18-350), 20x105 (German MG 204), 20x110RB (Oerlikon FFS and HS.7, H.S.9 variants), 20x110 (HS.404 - Hispano)

20mm CANNON CARTRIDGES TO 1945 PART TWO  

AMENDED 6 JUNE 10

20x110 (HS.404), 20x113 (Lahti L34), 20x120 (Madsen), 20x125 (IJA Type 97; and Ho-1, Ho-3 a/c guns), 20x138B ('Long Solothurn' used in FlaK/KwK 30 and 38), 20x139 (Swiss FMK: drill), 20x142 (IJA Type 98), 20x144R (Bofors m/32)

20mm CANNON CARTRIDGES AFTER 1945   

20x110 (HS.404: Swiss API), 20x102 (US M39 and M61 Vulcan, GIAT 20M621), 20x110 USN (Mark 11 and 12 aircraft guns), 20x128 (Oerlikon KAA, also used in Meroka CIWS), 20x139 (HS 820 - now called Oerlikon KAD - M139 in US service - and also used in Rh 202, GIAT 20M693 / Vektor GI-2), 20x82 (Vektor GA-1: the MG 151/20, still in production!)

19-20mm EXPERIMENTAL CARTRIDGES 

AMENDED 6 JUNE 10

19x114R  (WW1 Szakats), 20x110 (for scale), 20x72RB(E) (WW1 Ehrhard), 20x120RB Simonetta (1930s), 20x135 Polte (German pre-WW2: replica),  20x138RB (German WW2 unknown: replica), 20x122 case (post-WW2 French AA 5CG series), 20x126B (post-WW2 French AA 5CG series - used German projectiles), 20X158RB (US T5, for post-WW2 T33 aircraft gun)

23-28mm CARTRIDGES PART 1   

23x115 Russian (NS-23, NR-23, AM-23, GSh-23, GSh-6-23), 23x152B (Russian ZSU - VYa almost identical but brass case), 24x138 (Swiss Pzw.Kan 38), 25x137 (Oerlikon KBA: NATO standard also used in M242 Bushmaster Chain Gun, GAU-12/U, GAU-22/A, GIAT 25M811), 25x163 (WW2 French Hotchkiss for auto AA gun - aka IJN Type 96),  25x194R (WW2 French Hotchkiss for anti-tank/AFV guns), 28x199SR (WW2 USN 1.1" AA)

23-28mm CARTRIDGES PART 2   

AMENDED 6 JUNE 10

25x137 (Oerlikon KBA: NATO standard also used in M242 Bushmaster Chain Gun, GAU-12/U, GAU-22/A, GIAT 25M811), 25x184 (Oerlikon KBB), 25x189 (Vickers 25.4mm 1930s naval AA), 25x205R (Bofors AA), 25x218 (Russian Navy: earlier M1940 version used a slightly different, 25x218R, case developed from the Bofors), 27x145B (Mauser BK 27), 27x173 (current Mauser SCORE sub-calibre tank gun training round)

23-27mm EXPERIMENTAL CARTRIDGES   

AMENDED 6 JUNE 10

23x115 Russian (for scale), 23x106 (Madsen aircraft gun, 1930s), 23x122 (HS.406/407: French aircraft gun 1940), 23x139SR (US .90" cal T4 early 1940s), 24x138B German WW2 (replica), 25x116B (Swiss: necked-down Aden case), 25mm GAU-7 projectile (from US GAU-7 cannon 1960s - contained within combustible case), 26x130 (Colt 1960s AFV gun), 27x70B (for 1950s large-calibre Vulcan M61 variant)

30mm CARTRIDGES PART ONE  

30x90RB (MK 108), 30x184B (MK 101/103), 30x86B (Aden LV: almost identical to the 30x85B for the Mauser MK 213), 30x97B (DEFA 540 series), 30x113B (Aden - brass-cased, DEFA 550 series - steel-cased as shown, M240 Chain Gun - light alloy cased), 30x150B (GIAT 30M791 for Rafale), 30x155B (Russian NR-30, Chinese 30mm Type 1)

30mm CARTRIDGES PART TWO  

30x165 (Russian: current all-purpose case, different versions used in naval, aircraft, army weapons - this one is naval), 30x170 (Rarden APDS: Oerlikon KCB with brass case), 30x170 (HS 831: now known as Oerlikon KCB), 30x173 (Oerlikon KCA), 30x173 (GAU-8/A: an alloy-cased and percussion-primed KCA, steel-cased version used in Bushmaster II / MK44, Mauser MK 30F), 30x210B (Russian naval NN-30, Romanian A436, Zastava M86/89), 30x210 (Czech M53)

30mm EXPERIMENTAL CARTRIDGES 

AMENDED 6 JUNE 10

30x91 (Mauser MK 212 WW2 - replica case), 30x110B (German WW2 unknown: replica case), 30x170 (WW2 British Hispano project, precursor of HS 831), 30x100B (WECOM / XM 140 - for Cheyenne helicopter), 30x126B T239 US 1950s (for T182 Aden-type aircraft revolver cannon), 30x136 (HS 825 - 1950s aircraft gun), 30x136B (belted steel version of the HS 825 case), 30x164 (Philco-Ford's rival to GAU-8/A)

34-37mm CARTRIDGES FOR AUTOMATIC WEAPONS   

34x239 (Swiss Flab Kan 38), 35x228 (Oerlikon KD series, Bushmaster III), 37x69R (Vickers 1 Pr Mk.III of WW1), 37x94R (Maxim 'Pom-pom: 1890s), 37x145R (US M4/M10 WW2 aircraft), 37x155 (Russian N-37 1950s aircraft), 37x190 (COW gun: WW1 aircraft), 37x195 (Russian NS-37: WW2 aircraft)

37-50mm CARTRIDGES FOR WW2 AUTOMATIC WEAPONS

37x223SR (US M1/M9), 37x250R (Russian M39), 37x263B (FlaK 18/36/37/42 and BK 3,7), 40x158R (British 2 Pr and Class S), 40x311R (Bofors L/60), 50x346B (German FlaK 41)

40-57mm CARTRIDGES FOR POSTWAR AUTOMATIC WEAPONS   

40x364R (Bofors L/70), 45x386SR (Russian Navy), 57x230R (Bofors m/47 aircraft gun), 57x350SR (Russian S60 and naval guns), 57x398 (Czech PLK AA gun), 57x438R (Bofors AA / naval)