New production Russian 3OF27 (Ru: 3ОФ27) 115 mm high explosive fin-stabilised (HE-FS) tank gun projectiles have shown a change in explosive fill
The new projectiles incorporate TA-20 in place of the original A-IX-2
The compositions are:
TA-20 (Ru: ТА-20)
80% TNT
20% aluminium
A-IX-2 (Ru: А-IX-2)
73% RDX
23% aluminium
4% wax
This change is unlikely to significantly affect performance, but may indicate a shortage of RDX
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