French Manufactured 20 mm + Cannon Ammunition

By: Emeric Daniau <daniau@lcd40.ensma.fr>

Quelques données sur les calibres 20mm, 25mm, 30 et 40mm fabriqueé par
Manhurin en France.

All weights are in grams, dimensions are in millimeters and muzzle velocity
is in meter per second. The HE filler used is Hexal (mixture of RDX and
aluminium powder) for High Explosive and incendiary effect.

Name           Cart.Wgt P.Wgt HE.Wgt    Vel       Gun

20x82 HEI      210      112   9 - 9,6   720 m/s   MG151 et similaire
20x102 HEI     255      102   9         980 m/s   CN-MIT 621 et similaire
20x102 M50 HEI 260      102   11        1050 m/s  M39, M61, M193, M197
20X110 HEI     250      123   11,5      850 m/s   HS804, MkII, MkV, HS404
20X110 RB HEI  245      122   8 - 11,4  845 m/s   MkII, MkIII, MkIV
20X110 USN HEI 274      110   7         1012 m/s  MkXI, MkXII
20X128 HEI     340      125   7,5 - 12  1050-1100 m/s  KAA (204GK), KAB (5TG)
20X139 HEI     315      120   9,5 - 11  1050 m/s  HS820, RH202, CN-MIT F1
25X137 HEI     498      183   27        1100 m/s  M242, GAU12, KBA
25X137 APFSDS  498      140     0       1350 m/s  M242, GAU12, KBA
30X113 B  HEI  452      245   22        765 m/s   ADEN
30X113 B  HEI  442      245   48        810 m/s   DEFA, Type 550
30X170 HEI     890      360   38        1070-1080 m/s  HS831L, Rarden
30X173 HEI     840      363   ?         1070-1100 m/s  GAU8, Bushmaster
30X173 APFSDS  840      230   0         1400 m/s  GAU8, Bushmaster
35X228 HEI     1600     550   106       1175 m/s  KDB/C/E/F
40X311 R HEI   2130     913   104       880 m/s   40L60
40X365 R HEI   2500     960   128,5     1005 m/s  40L70

and for small arms (Proj.wgt in grains x muzzle velocity in fps):

.475 Mag       430grs x 1300fps, 384grs x 1625fps
.500 Mag       440grs x 1200fps
8 bore         1250grs x 1500fps
4 bore         1880grs x 1330fps

Emeric.


