Approximate Barrel Life, Mark 3 and Mark 4 – up to 5,000 rounds. 8cm KwK 36 L/56 Tiger I (early model) 35B01: 7. Heavy Engineering offer expertise for L-70 Anti-Aircraft Gun Upgrade in India. 37MM AND 40MM GUNS IN BRITISH SERVICE Bofors developed an improved gun with a longer (L/70) the …

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